The Pope AM deal shows that shareholders have to take action if they want to get some money back. Pope got a legal claim because the company violated a court order. With that claim, Receiver Seiden was able to step into the "shoes of the company" and obtain a settlement.
My guess is that the SGTI has violated other security laws – for example the election to the board of directors – that the remaining US shareholders (some 4 M shares) could use to get a legal claim. The best way seems to be via a class action in a Nevada court. That's the way choosen by SCEI's shareholders. SGTI's Ceo seems to have less criminal energy than SCEI's. He appears willing to settle if he gets kicked.