STEM fields?
I think the highly intelligent people usually find their vocational path pretty well when applying themselves. Some might not be self aware of themselves and struggle with it (the ones that don't apply themselves) and some become caught up with an ideal that they serve nothing to the community.
Know that high IQ doesn't always translate well with many jobs. Wisdom, drive, energy, experience,
competitiveness, etc. Is a factor that must be considered into the equation.
For example, I think these days we find ourselves with a lot of shit doctors. Intelligent enough to get to MD but won't pursue understanding. In the VA, I asked a few doctors about my fatty liver. All responded with "lose weight, eat greens". Lost weight, ate greens, no impact. "Lose more weight, eat more greens." they repeat, nothing changed. Wasn't until I looked into HFCS and its impact on the liver. Stopped eating HFCS foods, didn't lose more weight, didn't change my intake on greens, but liver went back to normal. Made mention of what I cut out and doctors said, "huh, well if it works, keep it up..."
I had made mention of things like my soda habits and my diet and the doctors didn't think much of it, because that is not what they were taught and that is not something they cared to look into.
They were intelligent enough to get into it but I think some get complacent or like the INTJ, only take information from a source they only find as valid and don't do there own research and study.
So much on this subject.
Should they, Yes, but they should always strive for better understanding in whatever field that they are in.