“Deserve” is a bad word like “Democrat.”
Nobody deserves anything. Or rather what everyone deserves is instant death for his many sins.
If God were meaner than He really is, He’d execute justice upon us on the spot, and the earth would become empty of men.
None of this means that since one does not “deserve” his income or wealth, Rawls can come and “redistribute” it. Rawls cannot violate people’s natural rights which are theirs because of their humanity not because of any prior “merit.”