Scott Aaronson is a computer scientist at the University of Texas in Austin, whose research mainly focuses on quantum computing and complexity theory. He's at least very adjacent to the Rationalist/LessWrong community. After some comments on his blog and then coversations with Jan Leike, he's decided work for one year on AI safety at OpenAI.
To me this is a reasonable update that people who are sympathetic to AI safety can be convinced to actually do direct work.
Aaronson might be one of the easier people to induce to do AI safety work, but I imagine there are also other people who are worth talking to about doing direct work on AI safety.
Honestly I suspect this is going to be the single largest benefit from paying Scott to work on the problem. Similarly, when I suggested in an earlier comment that we should pay other academics in a similar manner, in my mind the largest benefit of doing so is because that will help normalize this kind of research in the wider academic community. The more respected researchers there are working on the problem, the more other researchers start thinking about it as well, resulting (hopefully) in a snowball effect. Also, researchers often bring along their grad students!