Everyone knows he's right.
Even if they don't agree with his methods, everyone can admit on some level he was right. So why does no one listen? I think it has everything to do with comfort. The body's basic needs. Food, water, sex, socialising, warmth, shelter. Even the lowest of the low possess these in society. Their brain tells them "this isn't right" but their body is drunk with comfort and says "fuck off faggot, I can't be arsed with you right now". It's something like that but I can't pinpoint it better, anyone else wanna have a crack at it? At why you think nobody follows in his footsteps despite agreeing he's right?