Some of the dumbest people I know are teachers....and doctors and lawyers.
Have you considered that educators are the lowest 10% of the academic talent pool (holds for faculty & students).
Doctors and lawyers have to survive in the real world, a world where incompetence has consequences.
While I like a good lawyer joke as well as the next FReeper, to compare the average lawyer, let alone a Doctor, IQ with educator IQ scores is a stretch worthy of of the old comic book character ‘Plastic Man’.
I disagree, I.Q scores mean little if the possessor of the high I.Q score lacks Diligence, or Drive, or Creativity or Focus.
And each profession, or indeed, no profession to speak of, requires different skill sets, a Lawyer for example does not have the skills to be a mechanical engineer, or vice versa.
And I did not notice Clergy listed in your bar chart?
25 years in health care has taught me that pure intelligence is not synonymous with ‘smart’. I have known, worked with and been associated with hundreds of doctors. All were brilliant, few had the sense to get in out of the rain, change the oil in the their car or manage the business aspects of their practices. Their private lives were disasters too.