[Bartweiss]

I want to put aside the question of whether this claim is true for a second, and just point out that it is - obviously, as proven by the response here - controversial among engineers. On that basis alone, it's never going to be part of an effective professional code of conduct. A code which starts with that condition will not be widely adopted. A popular code which tries to add it will fail, or be mired in controversy and lose members. A licensing regime which attempts to keep people who disagree out of the industry will be broken by (government-abetted) defectors or competing licensing.

The number of doctors or prospective doctors who deny the medical code of ethics is very nearly zero. Almost all debate around it centers on subtle questions like defining 'harm' in self-determination cases (e.g. assisted suicide). The number of lawyers who would reject a given the legal code of ethics is perhaps larger, but the code is accordingly narrower. Lawyers are for instance free (and in fact obligated) to support "not guilty" pleas by clients they know are guilty. The boldest parts of the code (e.g. that lawyers cannot actively lie on behalf of clients, or mingle personal business with professional work) are also the the parts which are regularly broken.

Striving to avert something you consider immoral is a sensible decision, even if other people dispute that ethic. But doing so with a professional code of ethics is not only a doomed task, it's one which dooms the rest of the code in the process.