I'm sure you're generalizing to make a point but I can assure you this is often not the case, I know several PhD's who have a very hard time dealing with real-world problems that any practical engineer would catch. There is a lot to be said for theory, but there is also a very hard limit.
I don't know the details, but this could exactly be the proof, not the counter-proof. They do different things, but they may not perform ordinary jobs very well. What if we ask John Carmack to play with CSS, move those pixels so the UI looks "perfect"?
Not necessarily to disagree with your overall point. But having a PhD is maybe not always as significant as we think it is. Getting a PhD (usually) means extreme specialization in a (possibly highly niche) area, and may well leave someone without a lot of basic skills you might expect them to have.
(1) Many of these "defiant" people merely didn't trust credentials -- they were perfectly fine with authority who earned deference by virtue of proving they really do know what they are doing, and
(2) That the psychology/psychiatry profession in general, consisting of people who have their Masters and PhDs, have to "suck up" to a lot of credentialed authority, without question, to get their degrees -- and thus it's only natural for them to expect everyone to unconditionally respect credentials!
(For the record, I have a PhD, but it's in pure math, which is possibly simultaniously both the least practical and most practical thing you could possibly learn -- but as such, I'm tangential to engineering and physics -- and I'm pretty sure that all three of these fields have a certain "fine, you have a credential, but can you really walk the walk?" element to them.)
While I haven't really been in forums debating the merits and perils of paired programming, I cannot help but be amused by this essay, that pretty much confirms this initial thought I had about paired programming!
I have been very interested in learning all kinds of details from the Archmages, so I gathered as much information as possible. From what I observe, great minds do great things.