Earlier quoted context omitted.
There are always going to be more important causes, under any particular person's view of "more important", which depends very strongly on both subjective values and (in the case of AI alignment work) on precise probabilities of far-future outcomes. A dollar given to the Against Malaria Foundation will do a lot more good, in QALY terms, than the same dollar spent in Flint. And both dollars will do more (direct) good…
OK - I should have not mentioned Flint, MI. My intention is not to play-down funding for fundamental research. But really, I think the NSF would agree with the non-urgent nature of funding "reducing potential risks from advanced AI". They probably get proposals for things that are much more immediate, say algebraic geometry research that produces quantum-resistant cryptography at the similar computational complexity…
Openai will probably use the money to hire world class researchers and give them tools necessary to advance AI in a meaningful way that benefits humanity.
The other big labs from Google, Facebook and MS seems to be driven by gathering as much data as possible from users, learning from it and presenting click bait ads to make more money.