As far as that particular scene goes: I think you misunderstand, it's not that I have issue with the action going on, it's the music selection. "Bad Reputation" doesn't exactly lend itself towards tragic emotion. It's more goofy, fun action scene than agonized, loss-induced rage, y'know? Hence I feel it detracted from what would otherwise have been a sad, emotional part of the movie. Tough to really appreciate the sadness of the preceding scene when you're immediately launched into a completely different effect.
If that's how you feel, that's cool. Honestly, months later, I can't remember what song they were playing, but I remember that part perfectly and that I was sad about what happened, and loved the crazy action. I think it helps that it's not what you'd expect, that it's not what every other freaking movie does. So many times, I was surprised by how the people reacted, and that made it memorable and awesome.
Well, lots of people feel that way. What makes this character different from all the rest? They don't really put that out there. Is it simply his drive to be popular and noticed? Or is he really altruistic? I'd lean towards the former, but I wish that the movie fleshed it out more. That'd be a movie I'd like to see...one that comments on teenage priorities, one that shows that our interest in superheros has more to do with a high school need for acceptance and love than a desire to help.
To me, it was pretty obvious that it was a way to be cool, get attention, and get back and some local bullies. Then, as the movie went on and he saw how his actions were affecting everyone else, it became more about doing good. You know, character development.