40 years ago I read a document in the TM center about "The Absolute Theory of Greatness." In this document various people from history were mentioned. The premise, as I recall (and I could have this all wrong, due to time) was that from the perspective of the absolute, a person's impact on the world (Greatness) is based on how many people his life affects. Both Hitler and Alexander the great were mentioned. Nature allows a truly great person to live a very long time (108 years?)
I believe Veda Vyasa was mentioned as the greatest. I could have this all wrong.