The college degree doesn't prove a pilot's abilities. All it does is makes HR's job easier to sort thru the applicants.
Instead of having a pile of applicants 6ft high, they add a degree requirement & the pile is only 2ft high.
QF in Australia use to require very difficult high school subjects. No other airline did, why, cause (rightly or wrongly) most people wanted to work for QF. They just needed a way of culling applicants easily.

Thanks for the feedback fellas, it's a shame it's taken 4 pages of dribble & smart ass comments to get this far but it's all good stuff.