> earn money by running fleets of servers and software that do the work that generates income

If they're owning the servers and/or software, that's a capital asset. That puts them in the "petit bourgeois" category, like small shopkeepers.

If they don't own the capital assets they're economically dependent on, that roughly corresponds to sharecropping. We've had a few stories on here of what happens when the landlord decides to obliterate such businesses by changing the terms.