What compels someone to lead others?

There is more than reason why someone would be compelled to lead others. Either the person has good ideas that they want to share with others, for the benefit of the people, or they have a desire for power for their own benefit. Martin Luther King, Jr., for example, was motivated to lead others because he had strong beliefs and ideas about civil rights and he wanted to see them put into action. Alexander the Great, however, was compelled to lead others because of his want for power and conquest. He travelled throughout Persia, trying to conquer the country because he wanted to control the world. Even though leaders can be motivated for different reasons, both were very successful and accomplished a lot.

http://library.thinkquest.org/20176/alexander.htm

http://www.lucidcafe.com/library/96jan/king.html

http://upload.wikimedia.org/wikipedia/commons/3/33/Obama_2009-12-01_West_Point_speech_screenshot.png