"...what is the point of evil deeds if you don't have good deeds to compare them to? Desco can't violate social mores with her outstanding wickedness if nobody realizes social mores exist!"

Slight pause.

"For example, for a really long time Desco didn't realize killing was bad, so she failed to include it on her list of deviantly wicked acts! Not having a clear understanding of the prevailing moral standards was almost Desco's downfall as a villain!"