> Engineers have a perception that most other roles are lesser

Do they? I always felt I was at the bottom of the chain. "Moving up" means leaving engineering and going into management.

> and if only they were allowed to be in charge things would go better.

Could this be an oversimplification? Engineers understand how the product is built because they are the ones building it. And sometimes they are exposed to what other people (e.g. product people) have decided, and they know a better way.

As an engineer, I am always fine if a product person listens to my saying that "doing it this way would be superior from my point of view", somehow manage to prove to me that they understood my points, but tell me that they will still go a different direction because there are other constraints.

Now I have had many product people in my career who I found condescending: they would just dismiss my opinion by saying "you don't know because you don't have all the information I have, and I don't have time to convince you, so I will just go for what you see as an inferior way and leave you frustrated". Which I believe is wrong.

Overall, I don't make a hierarchy of roles: if I feel like someone is in my team, I play with them. If I feel like they are an adversary, I play against them. I don't feel like I am superior to bad managers or bad product people; I just feel like they are adversaries.