One possible reason is that situations in which experts are found to have made errors are given…
Where Angels Fear

That makes quite a lot of sense, and it fits with other assumed evolutionary behavioural traits, such as loss aversion: the best way to survive is to avoid catastrophic loss.

(Thanks for the multiple recommendations!)

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.