For literally no reason here is some stuff about Watchmen.

Watchmen features two of my favourite superheroes. Rorschach and The Comedian, they embody what a real hero might actually be like. The difference is the Rorschach is a psychopath who is fundamentally utterly morally righteous. He does the right thing no matter what, no matter what it costs him.
The Comedian is different. He killed children. He raped women. He was the kind of scum that in any other circumstance I would hate on the utter principle of it. But he can be explained as the manifestation of a good person trying to good things who realises that the only way you're ever going to defeat evil is by being more evil than it can be.

The Comedian became everything he despised in order to make the world a better place. As he said himself "when I started out, when I was a kid, cleanin' up the waterfronts, it was like real easy. The world was tough, you just had to be tougher". In this instance he faced the bad guys and he beat them up, and that made them stop.
But the more he sees of the world he begins to realise that just punishing bad people with little things isn't going to work. If he became the worst of them all, the most feared; a superhero who didn't flinch at the idea of hurting the innocent to get what he wanted, then maybe he would be strong enough to stop the really bad people.

Rorschach and The Comedian have very little in common apart from that they are both pretty psychotic, but they both are capable of things that most superheroes are not. The Comedian did horrible things to people for the greater good. Rorschach, despite his insanity, always did the right thing, the just thing.

If I was a superhero, I think that would be the only way to be. Nite Owl II and his classic superhero : saving the world one damsel in distress at a time, just wouldn't work. He isn't tough enough to make a real difference. Silk Spectre II didn't really even want to be a superhero. And for me to say anymore would destroy the ending of the film/book for anyone who hasnt watched/read it.

I think at the end of Watchmen, we can see that the only real superhero left was Rorschach. He was the only one who would have saved you instead of the world.