I can tell you that even though there are a large % of engineers that do have good social skills, there is a very, very distinct difference in the way engineers communicate and the way say marketing or HR people communicate. And this is coming from a high tech engineering based company!
And to make this cycling related... dearie rails against engineers designing cycling infrastructure without much thought to the human experience at all. Instead some stick rigidly to technical guidelines, etc. without wanting to consider that maybe the techical guidelines weren't good enough for cyclists in the first place.

Yes, true about self-expression of many engineers is different from marketing folks. Again, don't ask a group of engineers to promote cycling infrastructure to wannabe cyclists and general masses. (I'm being a bit facetious here..)