I hardly think the SIAI, a tiny organisation heavily reliant on a tiny pool of donors, is the most likely organisation to become corrupt. Even when I thought Eliezer was being paid significantly more than he was (see above threads) I wouldn't call that corruption. Eliezer is doing a job. His salary is largely paid for by a very small number of individuals. As the primary public face of SIAI he is under more scrutiny than anyone else in the organisation. As such, if those people donating don't think he's worth the money, he'll be gone very quickly - and so long as they do, it's their money to spend.