There is a positive correlation between IQ and corrective vision, so this in turn leads to stereotyping as "those with glasses are higher IQ". There are so many problems caused by Griggs v Ohio (which banned IQ tests for employment).
IQ is not a useful metric (both as far as most prospective employers, and myself, go): what matters more to the bottom-line is total ability to-do-the-job, where soft-skills and EQ matter just-as-much, if not far greater than, a dimenionless scalar that simply indicates' one's ability to do well on IQ tests.
I'm glad IQ tests are banned for employment purposes.
I'm certain you have heard phrases similar to the ones you just wrote before, by people just as clueless about the predictive validity of IQ, as you are.
I'm not disputing that. I just think it's dehumanising to reduce someone down to a single number, especially when so many other factors about a person need to be taken into consideration.
My moral-outrage here is my impression that the OP thinks IQ is all that matters, or that it's valid to make significant life-impacting and (business-impacting) decisions based solely on that number. To me, it's same bad-idea as the UK's "11+" exam system (fortunately now long abandoned) that practically determined someone's entire life based on a single exam taken at age 11.
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Also, I find it somewhat amusing that the more someone cares about high IQ scores, the lower their EQ scores tend to be.
