Sigh.
I get it. Someone got a job they are qualified for and that job required a high GPA and that job has a high salary. But to infer the inverse, i.e. not high GPA means a job with a low salary is simply wrong. Too many other variables in play.
My own n=1 counter example (but n=1 is enough)
My first job paid enough more than average to make my friends jealous. Why? Because it was in a small town in a non-sexy industry and the company just had to throw out a little bit of money to get engineers to come to town. Guy sitting next to me - same pay, 3.2. As far I was concerned I had been thrown to the briar patch and was as happy as could be.
reference: Me. I’ve been around this engineering gig for 25+ish years. Nothing really changes.