Napoleon Bonaparte, French military and political leader, 1769-1821 was a hero to those wishing to extend the vote and emancipate the poor; and a villain to the political 'establishment'

Probably Sir Isaac Newton (1642 - 1726/27) who is widely recognised as one of the greatest mathematicians and most influential scientists of all time. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), established classical mechanics.

Reference:
https://en.wikipedia.org/wiki/Isaac_Newton (accessed 15May21)