Rich and well connected people do not require higher than an average I.Q. to get into law school. That requirement is waived in lieu of a generous endowment.
As for the books, anyone with the money to hire a ghostwriter can write a book.
JFK was no genius.
I think a lot of people find fault with others who have a famous name and lots of $$$.
Making judgements about people you don't even know is really--you know--costs nothing and requires nothing.