I believe some time ago the Saudis were all offered their freedom in exchange for info and 70% (or similar) of their money. Not sure of the exact percentages.
Perhaps al-Waleed gave it up - still a win.
I get the feeling that comment referred more to the US where Q & Co have jurisdiction. Although they can influence & persuade in Europe/UK/Asia etc, they can't dictate - would be unhelpful if they did. US has been doing that for decades & it's resulted in this mess they are trying to clean up.