Especially of the flavor that isn't self-serving. The world needs more people like this guy. Passionate believers that are motivated by what feels right to them at the moment. Sometimes those ideas are right and sometimes they're wrong, but it shouldn't stop you from trying.There are organizations and activities everywhere that need people to step in and lead a dance. Go find your music and don't worry about the naysayers. Because when you're right like this guys is, you make the world a better place.
UPDATE: There's a nice talk from Derek Sivers at TED that uses this same video to highlight the fact that sometimes its just as important to be an early follower to make a movement happen. (Thanks for sharing, Gina)