Putting aside the personal bias that very much agrees with you, if you look at a bank as a machine, then the "top 10 executives" are very expensive, difficult-to-replace components of the machine. I don't know where you find people to run a bank of that size and complexity, and perhaps it's easier than I think, but I'd like to get a sense of how much damage those removals would make. Additionally, would making corporate leadership personally, criminally liable for the banks actions make finding a replacement even harder? (Of course, that's not a great argument since any standard you apply is going to make it harder to find a replacement. E.g. if we say "no sex offender can be a teacher" then it makes it harder to find teachers, but no-one would argue with that.)

Absolutely right. It's pretty clear that the fines don't prevent misbehavior.

the primary knock-on effect is probably that it accelerates the process of offshoring back- and middle-office teams to less expensive jurisdictions.