Ok, I'll try one more time (by the way, nice example from utopianfuture about the rating agencies).
When you pay a company, it does the audit and hands results to you.
When an (already-on-a-salary) academic does a review, he announces it to the whole world.
Small, but crucial difference.
I agree we shouldn't hire a company to do the audit. We need to find a person to do the audit, someone who is an academic or professional in the crypto market. I've contacted about 10 individuals who's ethics wouldn't be questioned, and who could care less about 10BTC. I'm basing their ethics on the fact that none of them have involvement in crypto currencies, which I would say is a conflict of interest if they did.