This I think is a separate phenomenon, maybe Nobel Disease but there might be a more general term, for example that includes celebrities.
For example, there are always at least a few people who you have to consult regularly because their tickets are always written how they perceive a problem should be solved rather than explaining the underlying problem to be solved. Then there are the sales and marketing types who like to dictate how the UX of the front-end should be because they like to retell anecdotes to prospective clients about how they solved a problem. Then there's the guy who hands you a spreadsheet he's maintained for years and tells you he wants you to put something exactly like it in the flagship product as a new feature.
To some extent, but the most severe form does seem fairly unique to engineers, specifically programmers. That is, I've met many arrogant lawyers and doctors, but never a lawyer or doctor who assumes they could program a computer due to their legal or medical expertise. But I've seen many a programmer assume that because they are proficient in programming they can confidently and authoritatively expound on all other areas of human endeavor (those being obviously inferior and trivial in the face of their own).
See the Nostalgia Critic review of the Wall. Or the Alex Meyers review of Obsession.