I don't know how truthful your statement is. I think they are real fans, since fan is short for fanatic. These folks are fanatically devoted to their team, so when the team lets them down by playing poorly and losing badly, it's an emotional pain that needs an outlet in the form of destruction.
Boston had its police ready for the Bruins fans, win or lose. Guess Vancouver is a little behind on mob control.
My favorite picture from what you posted:
Sorry, I forgot to reply to this. The difference is, blood supplies are a limited resource that relies on literal blood donations from other people. That blood is in short supply in a lot of areas and especially if there's a disaster. So giving it all to one guy just because he can afford it is like letting a murderer go because he is rich.