But then again, Batman himself was a result of rampant crime, corruption and mob rule, and he couldn't have foreseen a trail of crazies following in his wake. Besides, I'm not sure I agree that the crazies are a result of Batman. The Joker was a poor man forced to throw himself at the mercy of criminals who double-crossed him, which led him to madness. Sure, he began to fixate upon Batman as he saw him as his anti-thesis, but who is to say that if not for Bats, he wouldn't have fixated on (and broken) someone else? Two Face was a good guy who simply couldn't comprehend the idea of gray morality and grew disillusioned with the system he was forced to work with. Catwoman was always a theif - it simply amused her to don a costume to do it. And so on.
The points to consider are that most of the Gotham Rogues are a product of Gotham (as opposed to drawn to Gotham from other parts), that each of them could well have been created even without the presence of Batman, and that escalation is a fact of life. Just because the crazies came after Batman doesn't mean he created them. Who's to say that Batman wasn't simply the first of Gotham's famed freaks? As you say, his crusade at times resembles more of a psychotic obsession.