And still you miss the point. While some PhD's are also a dab hand at carpentry and plumbing and car mechanics, many are completely inept, yet brilliant in their own field. I hired skilled tradespeople to repair my roof, rewire the electrics, install a new kitchen, plaster some walls and lay carpet. But not one of them - and I doubt any current member - could adequately recommend a specific bit and associated drilling parameters for any oil and gas well on the planet.
No one is disputing the different skill sets and knowledge bases possessed by individuals and groups. You seem to think some here are. You are mistaken.
I notice you have failed to respond to my suggestion you consider the two words empirical and theoretical. Scared?