But that assumes that those people are only interested in their peculiar "pointy" things. And that PG people lack social skills. Which is where my A versus B archetypes came from to begin with. Assume that they are BOTH HG+.

HG+ people come in a lot of different varieties there.

Just because someone has a FSIQ of 150+ doesn't mean that s/he is necessarily passionate about particle physics. It might mean that s/he is capable of learning it, but even that probably depends on the individual.
Schrödinger's cat walks into a bar. And doesn't.