The purely sociopathic Grand Theft Auto player just seems like another character in a narrative designed to critique the game's shortcomings as a game, more a straw man than any real player that I know (or am).
Hire a hooker. Have sex with her in your car. When you’re done, beat her to death and get your money back. Thus begins 150,000 terrified discussions of the Grand Theft Auto series (Lord knows, I’ve begun a few discussions of the games myself in this way, and I’m not even opposed to the “morally corrupt” systems of GTA).
I just have to say, though, that I have played every game in the series (yes, even the first two) and some of them more than once. They say that this kind of malovolent behavior is what the series encourages, and true enough, the series certainly presents an open world that allows for a wide range of possibilities and the freedom to do just about anything you want, even really terrible things. That being said, this isn’t an activity that I regularly participate in when playing the game, and frankly, I don’t really know any GTA players that regularly do.