Just like manufacturing jobs, some software work could be completed by uneducated felons, and some work could only be done by PhD specialists. In fact I work at such a place that has an extremely wide gamut of both software engineers and production staff.
I would say the statistics would probably support your comment (besides the binary "nobody" and "only"), despite its obvious sarcasm. But that wasn't really my point. I had no intent to criticize certain classes. My point was that software people should get over the exceptionalism.