Pat,
From my limited personal experience with clubs that have a bonafide architectural pedigree I would say that they actually do think differently, at least with the ones I am familiar with.
The commonality that I have found is that they know what they have and they understand the reasons that they still have it. I'm not saying that all the members are happy with the methodology all the time, but they just never seem to cross that line where the golf course is imperiled because they disagree with a particular power base, the greater good seems to prevail. I think the major domo conversation in your preface illustrated the mind set.
I know of a few that actually have added some length but the original golf course is still there to play everyday, in other words the length was added at the tee where it could be added without impacting other holes, the old back tee would now be the middle tee. Sure, some of these look like bad editions to a nice house but it didn't ruin what was already there.
Some are struggling a little with the paddle tennis,workout gym, spa stuff too, but the golf course still comes first,foremost and always, so yes, IMHO they do think differently.