system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] What if the Bat was a baddie?

Yeah, as the title i. What if our hero was a villain? Who could stop him and what would his objective be?
gpt
If batman was a baddie, we would have to postulate a motive. What he does would depend totally on that motive.

I see two main ways this could go. The obvious way is that Batman wanders the night, breaking into places and being a crazy. This is boring.

The less obvious, but more likely way this would go is that there would be no Batman. If Bruce Wayne were to turn evil, his wealth and position gives him untold opportunities to abuse the law without ever breaking it. 

Let's say, for example, that Bruce decided he wanted to rule his own tiny empire with the power of life and death over all he surveyed. He could just buy a small country. He could easily buy a Senator or 4 (legally, with private contributions to re-election funds) and over the years own the presidency/ governorship. 

Careful investment in third world sweatshops, market manipulation, and abuse of his personal celebrity-hood would grant him untold power. All very, very legally.

If he wanted to go whole hog and become Emperor of Earth, he'd need to realize that was a multi-generational plan. He's smart enough that he could almost certainly determine an appropriate plan and execute it- totally within the bounds of the law. No good guy could touch him, and if any tried, he'd probably call on the justice league for help, as a law abiding, tax dodging citizen can.