He paid fealty to the regime and tens of millions of dollars of bribes and protection money to the ruling class.

Provided he told all the right people to get out while the getting was good, he's got good reason to be confident. I bet he knows about a lot of skeletons in closets too, although people tend to wind up not killing themselves in prison when they try to use that kind of leverage against the mob, so he'd be well advised to take his flailing about the wrists with a sauteed lettuce leaf if it came to that.