My father is a civil engineer and late in his career, he interviewed for a senior position at a construction company. He figured out that the interviewer didn't know what he was talking about early on the interview and confronted him with that. The interview came to a end, he was put in touch with a senior engineer at the company. He didn't take the job for other reasons. I don't think this kind of rubbish would fly in any other industry.
A professional engineer is not someone who professes to be an engineer. S/he is a "professional" per certification by "established" "institutions" within an "industry".
This is interesting. Is this similar to things like the bar council for lawyers? I don't know if there is something similar to this in India where I'm from.