Not at all. I guy in my Yale grad school class (English) finished his PhD in 3 years, and left.
He wasn't the smartest one either, just the most determined.
Oh c'mon. As much as I like and respect GWB, he is a Yalie too. Yale is just another check in the block for our political elite. A Yale sheepskin is worth 'merde' except to another Yalie. Of course, they run our government, so ....