I'm not sure why, by so many equate leadership to superiority; I suppose because people allow their ego to get the better of them and that blossoms into hubris. Leadership is many things, a difficult role mostly as there's so many different elements and situations but the core elements of leadership are the same.
A leader in a military situation is different to a leader on a humanitarian mission for instance. There are different requirements, but the basic elements of leadership need to be present in both.