[officemonkey]

It depends on what you think the best use of housing is. Is housing meant to "make money for the owner" or "provide housing for people?"

There, I've just taken class out of the equation. Your answer?

[skulpter]

Are clothes meant to “make money for manufacturers” or “provide warmth for people”

Is food meant to “make money for producers” or “provide nutrition for people”

None of these things are mutually exclusive. Otherwise, where do you draw the line?

[officemonkey]

The problem is "Housing" is not simply a consumable like food or (mostly) clothes.

The owner can consume the housing or rent it. But if it's not used to house people, then is it really housing? Or just real estate?

[matz1]

Best use of housing is whatever the owner think its best for. There is no single answer.

[kstenerud]

The best use of housing is what the government defines, in accordance with the Universal Declaration of Human Rights (specifically, article 25) for all United Nations members.

[matz1]

Disagree, government interest is not be universal.