Being open minded is of no benefit if you can't comprehend the different positions though ("that's just how she goes byes" is not an equivalent to "a brief history of time"). It's of course multi-faceted, but the traditional measure of intellect (IQ) is primarily based on our ability to comprehend things, and to solve problems. Whether one can apply those things practically, like the examples that
@ATex7239 mentions, are not in-scope of what is tested for, but I think are important considerations. People with high functioning ASD often score above average on IQ tests, but are challenged/stymied by day-to-day interactions and social cues. My sister teaches theoretical mathematics (and has her doctorate in it) but is socially and emotionally illiterate.
Highly intelligent people, as measured by the aforementioned traditionally accepted methods, are often abnormal/awkward/weird when viewed through the lens of normalcy. And while there is strong correlation between IQ and success, it is not guaranteed. We all know that guy or gal that was insanely smart and yet didn't become Gates or Musk. Hell, one of the smartest people I know drove truck and worked on an oil rig. He could learn anything, and at incredible speed, but was never able to turn that into what one would colloquially refer to as "success".