As directors they're culpable regardless of intent or belief.
That has been my point for a while now. By being given fancy titles, they become responsible for management of the company. In their arrogance, many have indicated that they are in charge of various functions - all one needs is to point at Penni's, Mike's or Monica's way of dealing with member's queries to demonstrate their central roles in MTI. JS is undoubtedly the one most involved but Cheri and Clynton at least are directly responsible for promoting and acting in managerial roles in an illegal pyramid scheme irrespective of whether it is a ponzi or not. Clynton is apparently the co-owner, so his balls are in the pliers.
The same will go for any of the recruiters who made presentations using the MTI materials. Monica, Penny etc etc will be complicit there. In the same way, unless they can prove that all the back-office creation was by JS alone, any of the likes of Claudette will be caught up because they will have known that the figures they were sending out were fabrications. Similarly, whoever produced the cockamamie "audit" will be drawn into the net.
Give the Maddoff ponzi a quick read and see how people around him were caught up.