It really depends on how big the bank is.

If a bank is really big, like HSBC, it can't/won't be penally prosecuted in real world, so the rational choice [1] is actually to keep committing crimes, and settle the ones where they're caught.

On the scale of such bank, even fines which would be astronomical from the perspective of a normal citizen, are peanuts (so to speak) for a large bank.

[1] = in a logical, not moral, sense.

They can't - they are banks!

These are not crimes where the banks are headquartered and from where they are doing the business.

Maybe US should not project their legislation on foreign subjects? They didn't vote for anyone who created that legislation anyway.

The problem is size. It is statistically impossible to employ 300,000 people and not have one dishonest employee.

But the standard for banks is now a zero tolerance policy with multi-billions fines for any breach. It is a game they cannot win.