That's a great question.
I would add that many of them do not believe that the regime will survive for even 10 years. That's the reason I can see for their wiring and funnelling money out of the country. If they believed that they were going to survive, they wouldn't need to use money-laundering tools to send money out of the country. I think many of the Iranian leaders are not even sure of their own futures after the death of Ayatollah Khamenei.