Being a leader and the effective exercise of leadership as one’s natural self-expression does not come from learning and trying to emulate the characteristics or styles of noteworthy leaders, or learning what effective leaders do and trying to emulate them (and most certainly not from merely being in a leadership position, or position of authority).
If you are not being a leader, and you try to act like a leader, you are likely to fail. That’s called being inauthentic (playing a role or pretending to be a leader), deadly in any attempt to exercise leadership.