So there is "dead weight loss", where transactions that would have been mutually beneficially and socially productive are eliminated by the regulation, and restored when somebody finds a loophole, restoring the individual and social benefit.
The world is not zero sum!
Their behaviour is very rent-seeking imo and at moments like these, its best to remind us that even the father of Capitalism, Adam Smith didn't like landlords
Had to search up some quotes from adam smith right now but here's a relevant one (imo) to this discussion:
"[the landlord leaves the worker] with the smallest share with which the tenant can content himself without being a loser, and the landlord seldom means to leave him any more." - Adam smith