I can't speak for anyone else, but I LIKE the feeling that i got into an organization by the skin of my teeth, and that I'm surrounded by people who are more qualified than I am (by whatever criteria). I worked very hard to get into a college where most people were smarter/more accomplished than me, a singing group where most members were better singers than me, etc. Those have always been the organizations where I've had the best experiences and grown the most. Your peers bring you up to their level.
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Samciganik