A lot of problems, he supposes, could be solved by diverting aggression to lust. He's never tried himself but it was just as an effective strategy as any. Lust was a lot more socially acceptable to act upon if nothing else from what he could tell.

"I'm not sure nice scenery is enough to motivate me entirely," he does admit. It'd be a perk, certainly, but he's fine living in squalor. Obviously. But that's unspoken his question, then: What else is in this for Ardyn if he cooperates instead of making Angeal's life more difficult? Honestly, the latter sounds just as - if not more so - fun than a prettier place to live.