It has been my experience that Ivy League graduates are far more susceptible to this malady.
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Possibly because what they list on a resume as a “broad background” may be in reality a very narrow, limited experience. Because they seem to know everything within their narrow field they may imagine themselves to be superior beings while not realizing that if forced to attempt survival in a very different arena they might be totally overshadowed by someone who has no idea what a Harvard or a Yale is.
Modern day America owes its existence to a large degree to men and women who could walk into a wilderness with only what they could carry and build a community. Those skills and abilities are not taught at Harvard law. Some of those people liked to talk about themselves too but they had to back up their words with deeds, they couldn’t get by on hot air alone.
Great observation!