how could/would they not?
everything is paid by the renters, and if the price is not high enough (to turn a risk-weighted profit) it will be removed from the market.
(if there's a high enough vacancy tax and/or security costs against squatting, then eventually it will be sold. which is a one time boon for the market, but it ends up crowding out new developments for a while, and altogether this just leads to crazy waitlists and the usual discrimination.)