Coom-Monsters don't realize that no matter how many times they finish during their goon quest, they never truly finish their goon quest until it's done with them.
I cannot describe this for the words fail me, but this is an evil GIF. I've seen hundreds of permutations of this scene in this exact format, this one is cursed or enchanted with some strange hex.
TL:DR They stopped caring about how embarassing they are and gave up on trying to improve themselves for the better, maybe this is due to the sunk cost fallacy?