Don't think so. You didn't say most of the book educated whom you know. Most
is most. Period. I was being a bit pedantic, but still was right. Think about it.
That aside, your claim sounded like little more than an unjustified defensive position many who don't have a uni degree
might take against those that have. Guessing there wouldn't be any research in support of a generalization like that.
You get dickheads in both cohorts.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”