I wouldn't use "ethics" to describe any of the rules in place to ensure the quality of the designs or deliverables in civil/mechanical/electrical engineering.

I'm glad that there are building inspectors, and safety standards for consumer electronics. I'm also glad that those rules are written clearly in terms of lbs and amp*hours and volts, and not philosophical terms.

If you want rules, say you want rules, but don't try to hide the fact that some of your rules will have not objective justification, and will be based on the personal philosophies of those in charge.