Dexter or Serial Killer by Proxy?

Ok... I know I'm behind the curve on some things... the rise and fall of boy bands, SPAM, and now Dexter.

For the last few people who didn't know, it's a series about a serial killer who hunts people who escape the the law (like serial killers or serial drunk drivers).

It's a dark show. You see in detail as the lead character captures and tortures his victims, but since we already know the victims are, themselves, horrible killers, we can take a perverse pleasure in watching these monsters meet their vicious ends at the hand of another monster.

But the most interesting question... since we continue to watch the show, and viewers are what guarantee new episodes, aren't we just as responsible for the crimes Dexter gets to commit?