When interviewing for a leadership role, you must articulate your "leadership tree"—the specific people you developed who succeeded and, in turn, developed others. This lineage of talent, along with who was loyal enough to follow you to new roles, is the most concrete evidence of your leadership impact, far more than personal accolades.

The fundamental difference lies in focus. A manager wants the work to be great, but a leader wants the people to be great, knowing this is the sustainable path to excellent work. Leaders prioritize their team over immediate results, fostering loyalty and consistent high performance by aiming to change their people's lives for the better.

Your true reputation is not what you project, but the sum of stories people tell about you when you're not in the room or after you've left an organization. This "legacy" narrative is the ultimate litmus test of your integrity and impact.

Great companies survive not because of a founder's continued presence, but because the founder codified a culture and operational DNA that outlives them. Companies like Home Depot and Amazon continue to thrive because their core principles are deeply embedded and replicable.

An empire is built for personal gain, name recognition, or familial wealth and will eventually crumble. A legacy is built on values and beliefs that benefit everyone and spread long after the founder is gone. A leader must consciously choose one path, as they are mutually exclusive.

Effective leadership prioritizes people development ('who you impact') over task completion ('what you do'). This philosophy frames a leader's primary role as a mentor and coach who empowers their team to grow. This focus on human impact is more fulfilling and ultimately drives superior business outcomes through a confident, motivated team.

The initial goal of building a company that endures can be misplaced. A more meaningful and lasting legacy is created through the people you train and empower. The corporate entity may fade, but the skills and values instilled in your team will ripple outwards for decades through their own ventures and leadership.

Better products are a byproduct of a better team environment. A leader's primary job is not to work on the product, but to cultivate the people and the system they work in—improving their thinking, decision-making, and collaboration.

Lecturer Bill Meehan's former employees volunteered countless unpaid hours for him years later. Their reason: "we could never pay Bill back for what he did for us." This reveals a powerful, lagging indicator of leadership: the voluntary loyalty of former reports.