The distinctive feature of utilitarianism is not that it thinks happiness/utility matter, but that it thinks nothing else intrinsically matters. Almost all ethical systems apply at least some value to consequences and happiness. And even austere deontologists who didn’t would still face the question of whether AIs could have rights that might be impermissible to violate, etc. Agreed egoism seems less affected.
The distinctive feature of utilitarianism is not that it thinks happiness/utility matter, but that it thinks nothing else intrinsically matters. Almost all ethical systems apply at least some value to consequences and happiness. And even austere deontologists who didn’t would still face the question of whether AIs could have rights that might be impermissible to violate, etc. Agreed egoism seems less affected.