But think of the innovation we'd lose out on by jailing executives doing this. A bank that gives sub-market interest and "invests" part of the difference in a scratcher game that they run. Oh, and for complex legal reasons, they're not a bank, but they do offer bank accounts at a different bank.

I think you're absolutely on-point. There's literally no end to the amount of money they could innovate for themselves if we'd just let them do whatever the hell they want and then claim it's too confusing to figure out what happened when they steal it all. Won't someone think of the innovators?!