No, because the cost of building, maintaining and keep in a state of compliance a housing lot is superior to the increase in rent. Sleep dealing is a lucrative

No, because the cost of building, maintaining and keep in a state of compliance a housing lot is superior to the increase in rent. Sleep dealing is a lucrative job. There are many factors explaining this : reduced access to law for the poorest, lack of alternatives, but also social perception of the tenants and of their worth, or the cognitive bias displayed by many about homo economicus.