The phrase "cost of doing business" doesn't mean "bankrupt" or "righteous penalty", it means, especially in this context, that it's an normalized and accepted business expenditure because of our corrupt regulatory system whereby white collar crime is NOT punished by meaningful punitive actions that would create a deterrence. Instead, any punitive measures can simply be accounted for as a "cost of doing business".
Let me give you a hyperbolic but extremely simple example:
CEO: Let's commit a fraud worth $100m
VP: But that's illegal
CEO: Yes, but the fine would only be around $5m
CFO: Perfect, I'll add a $5m expenditure under the "cost of doing business" line item
VP: Wow, that's a great $5m expenditure, we'll net $95m in profit
CEO: Yep, that's just the cost of doing business.
Make sense?