Are you comparing my local butcher to an animal torturer? Are you a PETA member? You know that some sociopaths start with animals, right?
So, you're buying the PETA propaganda now. Some sociopaths go to church picnics and some become politicians too. There are studies that find all kinds of predetermined outcomes; global warming, conservatives are ignorant, and...sociopaths pull wings off of flies and all kinds of other horrendous behavior (see politician above).
Besides, dog fighting is more akin to boxing than torture (other than boxers volunteer of course, which is the difference). I'm guessing Vick got more pleasure from the fight than the pain, but it is just a guess.