Well they are magical talking cats, so i imagine they live longer or so (tho if Theo's only like, 3-4 in cat years that explains some of his behavior XD [pretty sure there are crops that'd extend your livespan MC can make if not magic items or something, so hopefully they won't be elderly/retired age by the time the contracts up]), i'd feel more sorry for his 'lackeys', b/c i'm sure if the roles were reversed he wouldn't hesitate to trick Theo either
IDK if there'll be a mini arc/chapter dedicated to him going crying to his daddy to 'solve' things and the dad/whole village ending up being 'indentured servants' to Theo XD versus him thinking "it's good, my boy needs to learn how to work hard/properly" and ending up with some benefits to the village he's from