Example; There is a particular person in my County that was in charge of pandemic restrictions that has the suffix initials, "PhD, MPH, MEd" next to her name. Not a medical Doctor, no background in medical research. In short, not qualified. If she had the same ethical restrictions as a PE, she would have lost her license. I do know lawyers who are very careful to only practice law in their specialty; a real estate attorney wouldn't handle a personal injury case for example. Medical doctors, same thing. A brain surgeon is not going to perform a knee replacement surgery.