I disagree. Understanding fundamentally how and why people can be overconfident is very useful when interacting with others, especially in a professional settin

I disagree. Understanding fundamentally how and why people can be overconfident is very useful when interacting with others, especially in a professional setting or anywhere else that politics are involved: frequently, overconfidence (especially when unchallenged) is rewarded — for instance, in interview processes. Having a name for the mechanism at play is useful for assessing and communicating about such situations.