Leadership needs to be confirmed by God and others. Jesus was not a self-proclaimed leader, God confirmed His leadership. People easily fall into the temptation to become self-proclaimed leaders.
Leadership is about more than having a position. Leaders need to be competent, have integrity, and display selflessness. Jesus has set the example for us.
Jesus was generous. He set an example of giving abundantly that many Christians fail to follow. However, some do follow His example and have received their reward.