I really don't think that would be a valid method of evaluation of people, as generally in a game there are no real consequences to your actions. Sure in GTA if you kill to many people you'll be chased by the cops and maybe get arrested, but you start right out in front of the police station all nice and new. In a game, there are no real ramifications for your actions, and peoples morals tend to break down.
For example, in reality I would never, ever even consider sleeping with a hooker under any circumstances. However, I did all the time in GTA because it was a way to gain extra health, as well as just generally funny to watch the car rock
So should I be arrested for hiring a prostitute? I don't think so.
This is way to much like 'thoughtcrime' in 1984 for my liking.