Who where history great leaders?

The Weekly Newsmagazine "TIME"dated July 15 1974,carried a selection of opinions by various historians,writers,military men,businessmen and others on the subject:
"Who Were History's Great Leaders"?Some said it was Hitler,others said Gandhi,Buddha,Lincoln,etc.But Jules Masserman a United States psychoanalyst put the standard straight by giving the correct criteria herewith to judge.He said "Leaders must fulfil three functions:-"

1. proovide for the well-being of the led,
2. provide a social organization in which people relatively secured and
3. provide them with one set of belief.

With the above three criteria he searches histories,analyses-Hitler,Pasteur,Ceaser,Moses,Confucius and alot more than ultimately concludes:-

"People like Pasteur and Salk are leaders in the first sense.People like Gandhi and Confucius on one hand,and Elexander,Caesar and Hitler on the other,are leaders in the second and perhaps the third sense.Jesus and Buddha belong in the third category alone.PERHAPS THE GREATEST LEADER OF ALL TIMES WAS MOHAMMED WHO COMBINED ALL THREE FUNCTIONS.To a lesser degree,Moses did the same.

"The ultimate criterion of a true prophet is the moral character of his teaching" (Prof Dummelow)