I have a friend who coached a club sport for high school students. They said that they saw, over their tenure, over 100 homeschooled kids come through their teams, and they can remember only a single one without significant social challenges.
There are probably a few jobs out there that do not require the ability to interact successfully with bosses and peers, but I'd imagine they are few and far between. Looking at "success" in a given job holistically, I would be inclined to argue that "soft" or social skills make up a nontrivial portion of the requisite skillset.