You couldn't be more wrong. Such tests do exist, (in fact, as you say, the SAT test has a strong correlation with intelligence) but US corporations have been f

You couldn't be more wrong. Such tests do exist, (in fact, as you say, the SAT test has a strong correlation with intelligence) but US corporations have been forbidden to use such tests since the 'Griggs vs. Duke Power' case of 1971. So instead, people doing hiring let college admissions departments do their intelligence testing. If you got into Harvard, that probably says something about your IQ. Of course, this is a much worse situation, and has a lot to do with our current overemphasis on educational credentials, and skyrocketing tuition costs. It's not that companies don't care about IQ, it's that they are disallowed from using it explicitly.