They were all hurt badly by their own greed but I don't think they should be classed as "victims." They thought they were better than the people who kept their money in federally-insured savings accounts. They were smugly enjoying astonishing returns that turned out to be false. They would not have lost a dime if they have been more concerned with the return OF their money instead of the return ON their money.
Then how about "victimhoodlums"?