If you can get beyond the clickbait title - what Gladwell is really trying to say is there are likely many highly qualified students who enter top tier university as STEM majors but select themselves out of STEM majors and into a generic liberal arts degree.
He's essentially saying at a societal level/personal income level - a STEM degree from a mid tier school > generic liberal arts degree from a top tier school. Particularly if the recipient is not truly passionate about the liberal arts degree and is using it as a backup plan.
I think what you are experiencing is a bit related to survivorship bias. You are being exposed to the people who passed the gauntlet of getting into the top-tier school and graduating in presumably STEM. Of course those folks are smart and there are reasons you'd be blown away by them.
He's essentially saying at a societal level/personal income level - a STEM degree from a mid tier school > generic liberal arts degree from a top tier school. Particularly if the recipient is not truly passionate about the liberal arts degree and is using it as a backup plan.
I think what you are experiencing is a bit related to survivorship bias. You are being exposed to the people who passed the gauntlet of getting into the top-tier school and graduating in presumably STEM. Of course those folks are smart and there are reasons you'd be blown away by them.