Leaders aren't born. Neither are great artists, but both are born with potential.
If being a leader means challenging the status quo, then you need youthful rebelliousness to stand up and be counted. This is a character trait you were born with or developed very early in life - it is not a learned skillset.
To lead, you need the following traits or qualities:
a spirit of adventure - the urge to explore, break new ground, challenge the status quo, stand up for what you believe, risk rejection, rebel against authority, innovate.
an ability to influence - by example, logical argument, enthusiasm, persistence or painting a visionary picture.
something you think is worth saying, to improve the world around you.
the courage to speak out and the willingness to risk group rejection.
it doesn't require a drive to dominate people, only a desire to differentiate yourself, to make your mark.
Strictly speaking, no one is born a leader, just as no one is born a talented artist. But you can be born with the underlying traits that make you a potential artist given the right stimulus and environment. Similarly, exploratory, rebellious characters could become criminals rather than leaders depending on circumstances, so it is the potential you are born with, not full scale leadership. Mozart was not born a musician after all - just with the creative potential to become one.
EVERYONE can show some leadership - you don't have to be an out and out rebel. Anyone with suggestions to make to improve things can show leadership at least on a small, local scale. We all have good ideas for doing things better. It's just a matter of speaking up and persisting until you win support for your views. You don't have to be a manager to be a leader.