Well, I'll comment on Ward's hit on Rivers.
Rivers was well out of the play, and Ward swooped in high, and broke his jaw. I guess an argument would be, that Rivers should have looked around.
IMO, it was a cheap shot by Ward. He could have gone low, and would have accomplished the same thing - taking out a player who was in no position to affect the play.
Think back about Warren Sapp nailing GB OL Clifton, several years back.
The NFL, and players (I believe), feel that such hits go against basic principles of good sportsmanship. If Rivers was an instant from making a tackle - fine. But that wasn't the case.
The result of Ward's shot was that a promising rookie lost the rest of his season. And when starters go down, the competitiveness between teams that we like to see, gets diminished. I realize that a win is a win, but chalking up victories against heavily-injured clubs comes back. Witness the Bills' 5 - 1 start, when they faced off against some teams with severe OL problems and/or clubhouse mayhem. Facing clubs more or less intact, with some injury problems of their own - 2 and 8.