Try to focus on the main point in the abstract: if delusion X is low-status and rejected by experts and high-status people (even if it might be fairly widespread among the common folk), while delusion Y is instead accepted by them, so much that by asserting non-Y you risk coming off as a crackpot, should we be more worried about X or Y, in terms of both the idealistic pursuit of truth and the practical problems that follow?

Y, of course. Perhaps I should have started out by saying that while I agree that what you say is possible, I don't know if it describes the real world. Your assertion was that there are many high status delusions, but without evidence of that, all I can say is that I agree that supposed experts are not guaranteed to be correct on every point, and that it is extremely possible that they will reinforce delusions within their community.