Some people I've met and worked with had the best memories that I've ever seen...But they used their brains to run over and thru people...so I agree with you to a point.
As far as Chelsea...I cannot speak to her doings, and goings....as I know only what I read. Do you know more than that?
Some of the stupidest people I've ever met had BS and MS behind their names....Those degrees don't mean what they used to...I don't care where they were achieved.
All in my most humble opinion.....
FWIW-
Certainly intelligence can mean many things and while some people can be very gifted in one area they can be completely lacking in other areas. There isn't any school in the world that can teach common sense. As for Chelsea I would say she is very book smart at the least and if she takes after her parents she can probably manipulate people in ways that can make your head spin.