Blunt is another guy that brings an edge onto the field, and if you have enough guys like that, it can be intimidating. On his second TD yesterday, he got up and shoved a linebacker immediately after scoring, and I kind of like the attitude.
Blount/Gronk have shown an edge on offense. Browner/Wilfork/Branch/Collins have all gotten chippy on defense. I like the attitude it brings to the field, and I think you end up seeing teams or players quit before the game is over. It's been a pleasure to watch.