Prator: Ummm... Your question is "Is batman stupid?" Well, yeah, I'd say so. I mean, with the amount of money he spends on getting Batman gear together, he could form his own police force or bolster the power of Gotham's crew to incredible levels. With a legion of crimefighters at his disposal, cracking down on crime would be much easier to implement on a broader scale. As cool as personally going out and kicking ass is, it doesn't count for much on a wider social scale unless you're mostly taking down supervillains that the police couldn't possibly handle... and Batman doesn't do that quite as much as other DC heroes do.
actually
he tried to do that. his parents tried to do that. didn't work. gotham's degeneration is impossible to fix with money, just by spending it on new equipment, new training for new police officers.
that's why batman was born. as a symbol so gotham can fix itself.