That might work sometimes, but sadly market advantage isn't always connected to moral worth. For example, land supply is even more fixed than labor. If market advantage goes to the side with fixed supply, then most salary increases will be eaten by landlords raising rents. (Which pretty much happens in some places.) Also I'm not sure making labor is harder than e.g. starting a tech company. If market advantage goes to the side that's harder to make, then tech companies will use non-tech labor for cheap. (Which also happens, see Uber.) Like I said, immoral forces acting all at once.
Land supply is fixed but land supply isn't the problem with rising rent. The problem is the number of flats. Toyko's rents didn't rise in the last decades but rents in a place like San Fransico rise because the government enforcing zoning regulations that prevent the building of new housing.
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