Yes, and this is hard to accept: they are more important than technical skills. I have worked with many truly brilliant engineers who didn't see their ideas implemented because they didn't have good social/conversation skills. The most common version of this is the engineer who gets miffed/irritated/pissed off if people don't accept their ideas after 5 minutes of explanation. Meanwhile, the hustler whose code totally sucks gets the win because they know how to schmooze the business folks (or literally just tell the best lie).

Hard technical skills are not enough for most people to be successful. There are the outliers with "super programmer skills" (and here I'm thinking Linus Torvalds / John Carmack level status) who are just so indisputably expert that they should be heard. But even then they may not get the win. You have to know how to talk to others.

So, the way I think about it instead is that I’m just another type of system that can be maintained, improved, evolved. And my communication with others is simply an interface. And, well, any engineer can grasp the idea that easy to use and well thought out interfaces are valuable and worth working on.