I wouldn't say either of them are turn coats so much as they're loyal to their own cause which may have aligned with one side or the other during the war and now that it's over they've shed any real need to hide they're out for themselves. Moonstone, seems, to just want to be in control of the Homeworld. Heliotrope doesn't have nearly so lofty a goal.
Some good guys would probably be good though yes.