Even if he does end up serving some kind of jail time, it will be with the maximum comfort, maximum freedom to do things remotely, that money and influence has already bought and paid for. He might even prefer the security it'll afford him from vengeful creditors...
Probably quite fair summary of what needs to be legally determined, but there is also the non-philosophical question of whether he carried out all activities with his company's money above board. As CEO, did he actually have full power to use budgets and finances as he did, or were the entire board complicit, etc.
He may (will) get away with what he did with customers, or end up paying a trifle for their suffering. It's the big suits and whether he also lost their money is what will be his worry (as pointed out above what Holmes also found out).