They rented the mansion and I suspect the cars and yacht were leased. They could be hiding their money elsewhere.
I bet you 100% the money is stashed away in trusts that they must've set up for their three children. That would be the only comfort they can give to their children compensating for what they did. It's not that uncommon. Many of the children of con artists have huge college fund trusts and get to go to Ivy League Colleges and etc.
