"Engineering is a team sport" - me
You need to be able to work with others to produce things, unless you always work alone. Social skills are a very important part of that.
You need to be able to work with others to produce things, unless you always work alone. Social skills are a very important part of that.
And don't come saying that divvying up technical tasks is a social skill, it really isn't.
You might not be fit for a career in sales but that is not what we are discussing. The only major "social skill" you need is the ability to not offend or inconvenience others. This part is not very hard and doesn't need repeating as much as people do it.