The 'Torture' films

I've noticed something that's been bothering me lately. There is a sub-genre of films that is being produced and ultimately appreciated by teens (sadly, gathering popularity even if the films are critical failures). I call it Torture films. Movies with pornography level of writing, but instead of sex scenes, we have people tortured. Films such as hostel, saw and texas chainsaw massacre: the begining are canons for this sub-genre.

The problem I have with these films is, as opposed to the grindhouses, are marketed for a commercial and blockbuster level of success. Whereas grindhouses did have a point of pushing beyond simple censorship, these torture films are meant to be taken as a serious and mainstream film.