IQ is a valid measure of a certain kind of intelligence. And it most certainly correlates with salary and success at an individual and a national level. The hi

IQ is a valid measure of a certain kind of intelligence. And it most certainly correlates with salary and success at an individual and a national level. The higher your IQ, the greater the odds of you making more money. The higher the collective IQ of a nation or group, the greater the odds of that nation or group being successful or wealthy. https://brainstats.com/average-iq-by-country.html https://brainstats.com/average-iq-by-country.html If you look at the list of successful and wealthy countries and the list of national iqs, they tend to correlate fairly well. Barring war or some external impediment, the nations with the highest iqs tend to be wealthier and the lower iqs tend to be poorer.