No test measures intelligence. A test only measures you relative to the persons that wrote the test. – loosely quoting Asimov.
2007 is ancient history now. It is an interesting graph that one might correlate with a lack of meritocratic structure in society, but I’m on the low end cause I say this without looking up and reading the study. Pretty pictures evoke emotional blabbering bias and all that.
I have a counter anecdote!
Worked for a rich family as the sysadmin at their business. They would refuse to make unethical decisions. First manager’s meeting I sat we had a choice of screwing our clients, just a little, thereby making up on some money we were losing. Or, we could leave things as they were. VP looked around the table, “Well. Guess we have to do the right thing.”
I always got tickets to a charity ball at the beach. The family was top donors and wouldn’t show up. They were true believers in the Biblical admonition to STFU about your charity and just do it.
ask them how their family got rich
Guess there exceptions to every rule.