People thinking knowledge outside their career is useless is how we ended up with flat earthers, climate change deniers, anti vaxxers, anti maskers, and 5G conspiracy theorists. Most of those people are not objectively stupid, but they work in industries not closely related to science and instead of trying to learn how science actually works, they just blindly go with their assumptions and post their own opinions online thinking they're just as much an authority on it as the actual experts. And then more people ignorant of science end up thinking their intuition makes more sense than the published knowledge so they start denying science too.