What is the meaning of leadership?

So, first of all, not every CEO or managers isn't actually a good leader. Leadership is not a title and it's not a position. It's a sense.

What makes a good leader is for him to actually know the vision of where their organization is going, in addition to being a human, understanding the strengths, the weaknesses of their team, knowing exactly how to steer them. 

Technically, leaders don't really work a lot on the day to day. They are there to pull their team towards that goal, that target, and make sure that they get there.