On any given software team of more than 10 people, I can promise you at least 1 of them is regarded by the others as less skilled. The truth of that isn't relevant, the fact is even competent or highly skilled people may have a hard time presenting that skill verbally and/or in writing.

And even if you do somehow manage to go through an entire career without encountering someone like that or dealing with another person who happens to be a little your inferior, I fail to see the downside of learning social and communication skills for people not like yourself. That just sounds like a recipe for a well rounded individual.