I've flown with several degree types that can't fly for ****. And I've flown with several without degrees that can fly the box the airplane came in.
I've known former United chief pilots that flew over 100 combat missions in Nam without a degree too.
And to turn your nose down at folks that work with a rag or a wrench in their pocket--that just makes you a dick. It takes skills and talent to be a good mechanic.
Don't confuse work ethic and natural talent with a degree in history. When the **** hits the fan, I want a good stick next to me that knows the airplane.
Period.