[Nyororin]

I personally don`t really feel the need to have these things banned. In the end they are games, and cater to the "What if..." sort of thinking rather than telling players that is what they should do in real life.
If it`s the type of person that wants to rape in real life, playing a game is probably not going to appeal to them all that much. It`s appeal is because it isn`t something you could or would do in real life. Just as games that send you violently killing people have an appeal because they are things you never would do in real life. It`s all fantasy and will stay fantasy unless there is something already wrong with the person.