Well, he thinks criminals are such because they’re evil or something. He thinks the only way to stop them is by creating a totalitarian state where he is God and everyone does his bidding lest they invoke his ire.

The thin veil of “making the world a better place” was lifted super early in the series, when he started killing people that weren’t criminals, justifying it as “if they go against my plans they may as well be criminals”.

He was never supposed to be a good guy. He’s an arrogant piece of shit, and that’s why he got caught.