I have one of those engineer job titles but am most definitely not an engineer.
One thing in the non-technical world I deal as a hobby in swing mechanics (baseball). I used to hang out at a website run at followed by a bunch of engineers who like to take their advanced knowledge of physics and biomechanics to create a more “efficient” swing. Utter incompetence. These “dudes” needed to stick to their chosen profession instead of applying junk science to a bunch of shit they don’t understand. Not that I am bitter or anything (just wasted some some time there because I was impressed with the “smart” guys.)
On the other hand in the IT Software ssctor I deal in…. occasionally I run across a guy working in the field who is (for example) a mechanical engineer by trade who somehow detoured into software. In general these guys seem to be so much quicker to learn, and retain so much information compared to the regular IT slug like me.
So I see a definite difference either due to the quality of education or the advanced IQ of the full-blown engineer.