"Hey, there are a bunch of blood apes that follow the Immaculate Faith. We should help them get out of Malfeas!"
"Don't they like to murder everything? Especially cats?"
"Oh, right. What about heranhals?"
"The ones that need to have sex daily or else they go crazy?"
"Oh... Marottes?"
"They steal babies."
Everyone always forgets that marottes are covered in addictive slime, that gets left on things that they build.
If you don't have other cleaning demons around to scrub up everything you have marottes build for you and then you have mortals move into them, you risk getting marotte addicts.