But what happens when improving technology results, as it inevitably will assuming our future isn't a dystopian hellscape, in devices which are capable of outperforming most of humanity in any conceivable way for a cost below starvation wages for a flesh-and-blood worker? Without any economic incentive to hire people, what happens to the people? Some number of intellectual/creative people's skills will remain in demand, at least until technology replaces them, too.
For a liberal or socialist system, taxes will be levied on the owners of technology to provide for people's needs. But what would be the conservative alternative?