Why would that be different? It seems right now that tech billionaires are the group that is most in favor of advancing technology. What politically powerful group would it be more in my interest to hold power?

Elon Musk cares that Elon Musk benefits from policies.

He does not give a single solitary fuck about you. If you get lucky and your interests align, great. But Musk talks fairly openly about letting many humans die while a few rich elites thrive. And if you're posting on this website, you are not a rich elite.