I worked with pro atheletes from the 49ers and Raiders and got to know quite a few of them. The only common trait that is noticable is an intense competiveness- other than that they're as diverse as any group, even ours.
Ty Law has a history of being a "bad apple," BTW. To state he's typical of pro football players is as much of an insult to the rest of the players as it would be to site MrBlack of being typical of all HTC posters.