I think the key is that believing a consensus of experts is often a good default, but experts remain human, and human are corruptible for much less money than b

I think the key is that believing a consensus of experts is often a good default, but experts remain human, and human are corruptible for much less money than billions of dollars. For that sort of money anyone can convince themselves of pretty much anything, especially when the market is offering feedback in the form of, "You're brilliant, take our money!"