I note that Scarlett is, or was, the landlord of a rental property:
https://www.theanswerbank.co.uk/Law/Question1602402.html
So I'm left wondering whether she ever said to the letting agent "Keep the rent nice and low, so that it's easily affordable". I suspect not ;-)
We clearly need more social housing, irrespective of whether that's directly provided by local authorities or, more usually these days, through housing associations. (The availability of social housing keeps rents down in the private sector because potential tenants within that sector know that they've got a back-up plan, through seeking social housing, if they can't afford private rents). However I know people who bitterly complain that their sons or daughters can't afford to rent properties but who then campaign vigorously to prevent social housing being built close to their own homes.