Hardly. Curze might've been haunted by visions, but he became a mad murderer by choice. It was also his own choice on how to do what his legion did, as brutally and cruelly as they did it. It was under no instruction.
He also turned traitor, just for the chance to strike at his more "noble" brothers and reveled in the chance to humiliate and hurt them.
I do not know what made Death Guard turn traitor (no HH books about them so far), but, really though, only Alpha Legion (and perhaps Iron Warriors) come to mind as Legions, that turned traitor and with reasonable cause. Children of Horus/Luna Wolves, Word Bearers and Emperor's Children all got corrupted, World Eaters - Angron being an insane cunt, Thousand Sons were forced over by the events of Prospero and Night Lords were scum to begin with.