The tenants might change in the future. Right now they are individuals, but perhaps properties will be leased to build power grids or autonomous logistics warehouses. Also, if techno-feudalism accelerates and public purchasing power collapses, leading to the introduction of UBI, I think most of that money will just end up going toward essential housing costs anyway. In fact, if you look at recent trends in real estate, commercial properties are where the big money is being made, aren't they?