When I think about it, Ryu is a huge piece of shit. He’s a wandering hermit, which is fine. Except he’s doing all this jetsetting across the world to martial arts tournaments on his friend’s dime, which kind of goes against the humble wanderer lifestyle. He teaches a minor a martial art that was expressly designed for assassination and gets her involved with a worldwide mega-crime syndicate. He has evil superpowers based on murder, but instead of not using them, he decides that his own improvement as a martial artist is more important than not going on a killing spree and decides he wants to control it instead. And later in his life, when shit actually goes down and there are moon nukes and fucking Illuminati trying to eradicate human life to create a race of übermensch, he doesn’t actually fight them out of altruism, he does it to test his own abilities. He even lets magic fire-ice eugenics man live!
I mean, what kind of Shaolin monk travels across the globe with their rich friend’s money to master murder powers and teach high school girls how to fight the mob? Not a very good one, that’s for sure.