You're looking at it from the wrong perspective. Mortgages are a way for the financially powerful to extract wealth from the financially weak. There is no nice "service" being "kindly provided", it is just profiteering from other people's existence. You have to put it in the perspective of history, where the land was fought over, enabling the powerful to reign over the weak and charge them for existing. Essentially that's what we still have today, although it is "financial".
The property market is pumped up by unchecked (not gold backed) money printing by the Central Bank, which is privately owned by the "financial elite". Buy To Let landlords are merely the maintenance men of the bankers, that are allowed to play landlord because without them the bank would have no one to oversee the property and wouldn't be able to extract wealth in this way.
There is no "service value", it is all just wealth extraction one way or another. The tenant has to pay more than the mortgage to make it "financially viable". House prices have been pumped to such ridiculous levels by money printing that a correction has to come, because none of the plebs can actually afford the artificially pumped prices. Fortunately that means a reasonable property market correction, probably 10% or more, which will happen when the cheap two year fixed mortage terms expire. A lot of Buy To Let landlords will become unprofitable, but I won't be shedding any tears for them.
I dont disagree with you, i was just trying to word it more pragmatically than this. Yes realistically this is what is going on however landlords are or should be providing a service to tenants and for it to be a service then some value to the tenant has to be shown overwise it is just profiteering/wealth extraction of those unable to buy a property of their own, that was my point here.