Hector, your last paragraph is right on the button. You study at post graduate level to stretch your brain but academic work isn't the same as professional training. If you're lucky someone, somewhere might give you a job on the strength of it, but in general airline managers don't have academic qualifications and aren't very interested in anyone who has.
Education sharpens your mind and so makes you more effective at work. That's the real advantage. One day an educated work force may evict the hobbyists but for now its the hobbyists who run this industry. They will continue to do so for quite some time yet.
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Through difficulties to the cinema