There is a lot of bad stuff in the game, but the game is so great because you can do virtually anything...it is like real life.
Just because you can do bad things doesn't make the game itself bad.
I isn't doing anything very good for my driving, I'll tell you that. Not that I'm blowing intersections and jacking cars, but I have noticed I'm taking advantage of opportunities and driving more aggressively. And I don't like driving aggressively. I like flying under the radar in RL.