That guy sounds like another guy I knew—brilliant financial type, but bewildered in any social setting. His wife (now ex-) once told us that he couldn’t tell when people were angry—he couldn’t read the signs.
I think most of those mensa types are somewhere on “the spectrum” of autism. They’re zeroed in on the narrow band that IQ tests measure, but at the expense of wider experience and perception.
Their narrow focus, combined with indoctrination and arrogance, is the reason so many of them are leftists.
If he was high function autistic he compensated well, I don’t recall ever hearing him say an inappropriate word.
From an evolutionary perspective, the narrow focus lends itself to successful hunting, problem solving, and survival outside a tribe. Civilization has a limited but growing need for such loners because they can solve deep focus problems that high social IQ types cannot.
Big gov lovers are proportional to population density, not IQ. Many high IQ types get indoctrinated into leftism simply because universities and brainy employment tends to be in high population density cities rather than the hinterlands.