Most ambitious people are taught to prepare for failure.

They are told to build resilience, handle rejection, recover from setbacks, and keep going when things are hard. That advice matters, especially in investment banking, where pressure, disappointment, missed mandates, stalled promotions, and volatile markets are part of the job.

But my conversation with Brian Jones, CEO at BankCap surfaced a different leadership risk.

What if failure is not the only dangerous season? What if success is dangerous too?

That idea may feel uncomfortable in an industry built around achievement. Investment banking is full of scoreboards: revenue, fees, rankings, bonuses, titles, promotions, mandates, market share, and personal wealth. The system rewards visible progress and measurable wins. For ambitious bankers, those wins can feel like proof that the sacrifice is worth it.

But Brian’s warning was clear. Sometimes our most vulnerable time is not when things are falling apart. It is when things are going well.

When success arrives, people may challenge you less. The applause grows louder. Money becomes more meaningful. Power increases. The story around you starts to change. Slowly, without noticing, you can begin to believe the narrative that your success is fully deserved, fully controlled, and fully secure.

That is where leaders need guardrails.

One of the most important themes from the conversation was that success itself can be dangerous.

Brian made the point that when things are going well, leaders can become vulnerable in ways they do not recognise. People around them may become less willing to challenge them. The applause grows louder. The success starts to feed a narrative that they deserve it, earned it, and know exactly what they are doing.

That is when leaders need stabilisers.

Brian talked about money, power, and applause. Money needs generosity. Power needs accountability. Applause needs awareness. Without those guardrails, success can quietly distort judgment, priorities, and identity.

This is particularly relevant in investment banking because money is such a dominant scoreboard. Fees, bonuses, revenue credit, client wins, promotion outcomes, and personal wealth are all visible markers of progress. Brian warned that money can “grab your heart” in ways people do not fully see, and that leaders need to treat it with care because of how easily it can feed pride, entitlement, or misplaced priorities.

Ambition is not wrong. Financial success is not wrong. But success needs to be held carefully. If you wait until the fire comes to build your guardrails, it may be too late.

Brian spoke about money with unusual honesty for a finance conversation.

In investment banking, money is often the primary measure of success. How many deals did you close? What fees did you generate? What did you contribute to the bottom line? What was your bonus? How do you compare to the people around you?

That scorekeeping is part of the industry. But Brian warned that “money has tentacles that grab your heart in ways you cannot defend against or comprehend,” and that leaders should treat it like “dynamite.”

That is a strong warning for bankers at every level.

You may be early in your career and feel like money has not arrived yet. Or you may be further along and already feel its pull through lifestyle, status, commitments, expectations, and comparison. Either way, money can shape decisions before people realise it is happening.

Brian’s antidote was generosity.

He described generosity as a way to lessen the hold money can have on our hearts. For him and his wife, Pam, that meant being intentional about giving, setting up a foundation, supporting organisations, and using success to serve needs beyond themselves.

The broader leadership lesson is this: generosity reminds you that money is a tool, not an identity. It shifts the question from “what does this prove about me?” to “what can this make possible for others?”

That shift matters in an industry where financial success can easily become the scoreboard of personal worth.

As bankers become more senior, they gain influence over clients, teams, careers, processes, economics, and strategic decisions. That influence can be used well. It can protect clients, develop juniors, create opportunities, and build institutions. But power without accountability can become dangerous.

Brian connected this to the need for people who can speak truthfully into your life. Not people who are impressed by the title. Not people who only see the success. People who can say, in effect: you are gifted, but do not let it go to your head.

Every leader needs those people.

In banking, this is especially important because senior roles can become isolating. The higher you rise, the more people manage their words around you. Juniors may be careful. Peers may be competitive. Clients may be flattering. Teams may not always tell you the full truth.

That is why accountability cannot be accidental. It has to be designed.

It may come from mentors, close peers, family, faith, coaches, former colleagues, or trusted friends outside the industry. But it needs to exist somewhere. Leaders need people who are not dependent on their approval, compensation, or status. They need people who can challenge the story success is telling them.

Without accountability, power becomes self-reinforcing. With accountability, power can become stewardship.

Success attracts applause.

People invite you to speak. They ask for your opinion. They introduce you as an expert. They celebrate the deal, the promotion, the fundraise, the title, the exit, the ranking, or the growth story.

That recognition can be enjoyable. It can also become distorting.

Brian spoke about how applause can feed a leader’s mindset. When people keep saying, “look at you,” or treating you as the expert, it can quietly reinforce the internal story that you are more important than you are. That is why applause needs awareness: the ability to notice what praise is doing inside you, and whether it is increasing gratitude or feeding ego.

This matters because applause is not neutral.

If you are not careful, you may start optimising for it. You may choose the visible thing over the important thing. You may chase recognition instead of substance. You may start believing the polished external version of your career more than the honest internal version.

Awareness interrupts that.

It allows leaders to enjoy success without being consumed by it. It allows them to accept recognition without needing it. It allows them to remember that public validation is not the same as private health.

For bankers, this is critical. The industry already creates strong external incentives. Without awareness, it is easy to build a career that looks impressive from the outside but is fragile underneath.

One of Brian’s strongest themes was intentionality.

He used that word repeatedly: intentionality in career, relationships, family, faith, generosity, networking, leadership, and success. He also spoke about sowing and reaping: the idea that if you do not plant seeds in the areas that matter when you are young, there may be little to reap later.

That principle applies directly to leadership guardrails.

You cannot wait until money, power, and applause are already shaping you to decide who you want to become. By then, your habits may be formed. Your lifestyle may be fixed. Your identity may be attached to the wrong things. Your closest relationships may already have absorbed the cost.

The better time to build guardrails is before you think you need them.

That might mean deciding early how you will handle money. It might mean building a circle of people who can challenge you. It might mean creating rhythms with family that success will not be allowed to erase. It might mean staying close to clients, colleagues, and communities in a way that reinforces service rather than ego.

Brian’s own career advice came back to service. At Bear Stearns, he said what he really prioritised was the service mindset: making colleagues and bosses look good, walking alongside them, representing clients well behind closed doors, and making sure they received a good, fair, appropriate deal.

That may be the simplest guardrail of all.

Keep asking: who am I serving?

Success is not bad. Ambition is not bad. Money is not bad. Power is not bad. Recognition is not bad.

But none of them are neutral.

Each one changes the environment around a leader. Money tests priorities. Power tests humility. Applause tests identity. Success tests whether you have enough depth to carry what you have been given.

That is why success is a dangerous season. Not because it should be avoided, but because it should be prepared for.

For investment bankers, the lesson is clear. Do not wait until you have the title, the bonus, the platform, the public recognition, or the full client franchise to decide what kind of leader you want to become. Build the guardrails early. Practise generosity. Seek accountability. Stay aware of what applause does to you. Keep serving clients, colleagues, family, and the people who trusted you before the success arrived.

Because the real test of leadership is not only how you respond when things fall apart. It is who you become when everything appears to be working.