>> professional regulation in software engineering, if for no other reason than to ensure that Terminator and Black Mirror don't become a reality.
Engineers have professional associations. That never stopped a single engineer from building weapons of mass destruction. Lawyers are subject to perhaps the most intricate body of professional regulations and so lawyers rarely ever do anything that might hurt society at large. Professional organizations exist to benefit their members. They don't exist to prevent social ills. That is the role of government. A bar association for software engineers won't prevent Skynet. Government regulations setting limits on the powers attached to AI might.