Stanford went to jail....the Bidens got off scot-free.
Stanford stole billions. In this particular instance, I don't think the Bidens stole more than a couple of million, if that.
Stanford promoted them... maybe for the connection or the presumed protection. But that doesn't mean that they were part of a Ponzi scheme.
More likely, they ran some sort of investment fund where they didn't care if it did anything other than break even or not lose too much money. The take is in the investment management fees. If you're not paying attention, or closet indexing, and you're charging "active" fees, you are borderline stealing. And that's what the Bidens do. They are extra "middle-men" inserted into all sorts of processes.
In China, Hunter and Heinz have almost nothing to do with the management of the 2 Billion dollar Rosemont Seneca fund. The Chinese make all the investment decisions. The management fee paid to Rosemont Seneca is influence buying (Keinz/Biden), or at least, speculative influence insurance.
I think the Biden Fund's relation to Stanford was of this nature. They were peripheral to his scam.