You can't change anything if you're happy. In fact why would you change anything at all? You have to be mad, no pissed off in order to do that, that the world does not satisfied you. That's how some artists became artists, because something happened in their life to become that way, instead of being mad all the time, instead of walking away from it all, they expressed it through their work. And yet, get anyone pissed enough and they can change people's ideals, the way of life, and/or the world, for better or worse.