I don't even think it's that being informed, having a real sense of what you know (and what you don't know!) makes people less vulnerable to this because they know more information... No, it's the confidence to not be flattered by anyone who tries to make you feel like you know better than people who have studied the problem more.
It's more than "trusting experts" it's knowing how you can identify experts, the degree to which they can & can't be trusted.
futurebird