http://www.joelonsoftware.com/items/2006/06/16.html
"a person who came along from my team whose whole job during the meeting was to keep an accurate count of how many times Bill said the F word. The lower the f*-count, the better."
I don't think you get to be the richest guy in the world just by being exceptionally smart.
The cognitive load of asking a question or making an objection is generally lighter than giving an honest counter-argument. Especially if the question or objection is a profanity-smeared act of belligerence and the answers have to be polite or else you're fired.
"Examinations are formidable even to the best prepared, for the greatest fool may ask more than the wisest man can answer." - Charles Caleb Colton
The second problem is one of scalability.
How does a leader make sure that the technical decisions are correct without having to learn very deeply about it?
One is by constantly probing for weaknesses and see if people have difficulty defending their choices, and seeing if the trade offs were reasonable.
The second is to develop a fierce reputation so that the person is sufficiently prepared before presenting his thesis.
Example: When asked to "arrange a meeting" with the web consultant, my assistant left all of the choices up to me and didn't try to get any information exchange out of the way ahead of time by email and using our website. I've had to explain that our meeting had certain goals, and that she should think independently to achieve them. Instead, she just took "Cover My Ass" actions by demonstrating that she was taking actions "trying" to move toward those and left all the decisions up to me. I had to explain that the value they produced for me was in minimizing the communications I was involved in and exercising her intelligence and common sense.
Basically, a company has real success by creating real value. Employees that focus on process are focusing on covering their ass and not on the goal of producing real value.