You assume a free market economy that does not exist. Rent is a good example because regulation is driving it small land lords in favor of a few large corporate land lords that collude on rent using common algorithmic models.
It's interesting that I said government self inflicted a lot of this in the rent space by over-regulating and you seem to think this is an example of the free market not working rather than the government breaking the market.
I’ve had more than one conversation with my wife about just keeping the house empty instead while we’re gone, but I still think I have a moral obligation to rent to someone if I can.