I believe he`s one of the most notable examples, not in his early guerrilla day, but now with all his deep thoughts and pacifism, just check the vid
https://www.youtube.com/watch?v=cCEgcd7G9Bg (https://www.youtube.com/watch?v=cCEgcd7G9Bg)
BTW, he was the "poorest" president on earth, he donates his salary, lives in a farm and legalized weed, your move "great dudes of history"