I find out that on TV Tropes can count villains that has standards as Complete Monsters in 2 cases, besides obvious pragmatism:
CM has a standard against thing that is extremely innocent compare to what they done, making it looks more petty and hypocritical than sympathetic. Like, Omnicidal Maniac/Cataclysmic CM, that doesn't like when someone swearing. I guess that what was meant by Standards that Played for Laugh.
Or they has standard against thing for incorrect reason, not necessarily pragmatic. For example, Complete Monster is against racial theory not because it's awful, but because they hate everyone, and doesn't thing that "Aryans" deserve less suffer than "Non-Aryans". I'd say that Joker from Injustice could had still qualify if it was shown that his standard against Nazies is based on this, but it wasn't, so...
Aaand I think: can we apply similar rules? Is there any examples already?