An engineer isn't at risk every few months of losing his privileges with regular inspections and tests and checkrides, nor does the engineer need a medical, nor is the engineering field cyclic in that massive furloughs and layoffs occur throughout the industry every 5-10 years, nor will the engineer lose his job if he is in a car wreck or develops diabetes or if his eyesight diminishes. He doesn't even require a drug test on a random, frequent basis.

The pilot is much more in need of a backup skill or plan than the engineer.

A degree in aviation is pointless whether it's for an engineer, or a pilot.

The engineer, however, requires the degree in engineering to do his job. The degree for the pilot won't teach him a thing about his job, particularly an aviation degree.