"Retards" with college degrees who call themselves engineers are only breaking a rule in countries (like Canada) where "engineer" is a protected term. For countries (like the US) where engineer just means "someone who has training and responsibility in an engineering role", you're being a pompous ass. Your title does not make you a better problem solver.
I know a few senior retired chemical engineers that don't have college degrees in engineering, because they got their start in an apprentice program years and years ago. They did good work as engineers and problem solvers, and the lack of a cert labeling them as officially-minted and approved by the ABCDEF certification board doesn't make them any less qualified.
A trade group camping on a title and claiming legal ownership of it doesn't make them better at their job. And for what it's worth, train operators have a legit claim on the phrase "engineer" that predates any of our modern professions.