Experts often have more wrong ideas about their field than normal people.
It's because they need to justify their job, so they can't just give the obvious answers that everyone knows.
They need hard-to-understand ideas, and nothing is harder to understand than nonsense.
This happens in fields where the experts don't produce results which are obviously objectively better or worse.
Academics, moralists, and fashion - not engineers or commercial media makers or pianists.
This is a problem with accepting the judgment of any group of experts. They have an inherent conflict of interest.
A thoughful outsider may have less detailed knowledge, but also may be more directly seeking the truth - and that can matter more.