Well . . . Batman was right. I mean, hypnotizing the bank teller into breaking a $100 when all he had was a one? Sure, it's a minor crime, but still. And that was before the Batfolks showed up.
But this story is still pretty disappointing. They could have laid off him a little more. Or there could have been an actual rehabilitation.
Really, this story is meant to be ambivalent, they just didn't quite reach it.