If not for pleasure, then at least for the principle
from Kanye West – Champion Lyrics on Rap Genius
Meaning
A reference to Gary Numan’s debut album The Pleasure Principle

Sure, Kanye would have more FUN living a rockstar lifestyle, sniffing coke and having orgies with groupies.. but what would JESUS think of such behaviour?!

The word principle (principal) also reinforces the school-related themes of this verse and suggests that he has to act proper when he’s speaking in schools -no swearing/cussing etc.
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