Part of the problem is self confidence bias. Everyone things they're the good engineer, while dunning Krueger would say maybe you are the bad engineer.

Prove who's good and bad.

And you can't really, because there's always tradeoffs you're making as an engineer. The really self confident ones think their tradeoffs win, and maybe they do, though often they don't and these people are just self aggrandizing and stroking their large egos. Are you a better engineer just because you made a big talk and had the confidence to share it with lots of people?