I have to disagree with your notion of the public trusting the architect, builder and realtor. Realtors are not thought of by anyone I know as having any real technical expertise relating to the technologies in the home. Usually they are thought of as someone playing both sides against the middle. Ditto the builder. Like us some are good and some are not. As a source of technical expertise, I'm afraid not. All the work they do is dependant on the trades working for them, almost exclusively sub contractors that change with price, territory and availability. Architects are famous for putting the visual esthete over technical correctness and installation efficiency as a matter of fact. These are generalisations but they are born of long experience. Everything you say seems to be contrary to the consensus on this forum. Maybe you just need a reality check.