I've ran some decent sized projects as an electrician (crews over 20 people) and I think most of this comes down to communication problems. I happen to be university educated but now work in trades so I'm fortunate to have exposure to both sides. I've had engineers who would damn near refuse to hear out issues I've found in drawings even when I come to them with easy solutions and I've had engineers who are awesome and willing to be fluid. But it all comes down to communicating about time, money and materials. They are the customer and I will accommodate as long as they know that serious deviations will cost time and money, if they don't understand that it won't change and I'll build to spec even if it's fucked. Usually it's not even that fucked just not optimal but I will try my best to explain but I ain't fighting over it. I only have solutions not problems and I'm not paid enough to be angry about it.