I am not sure why you think it should be any way else with our current systems, though. Asking less means the home owner is effectively paying for maintenance and upkeep entirely out of pocket, and entirely net loss for them. That said, I also don’t think that means they need to price gouge and trying to make huge profits.
I understand, but the comment I replied to was implying that rent should somehow be less than mortgage plus insurance. My point is that under those circumstances, it doesn’t make sense.