What,
Ask yourself what your Masters degree gives you which makes you a better pilot than someone without one? The answer, I would guess, is not very much.
A Batchelors degree proves to an employer that you are capable of studying fairly advanced material and applying yourself academically, which is important in terms of getting type ratings (something your employer will hopefully pay for, so they want to be confident you'll pass easilly). A degree in maths or physics is even better, because some of the material can be applied to flying. But all of this is covered, to some extent, by the ATPL written exams anyway, so even the Batchelors doesn't really add very much to your marketability, I wouldn't have thought.
You said: "I find [my degree and age would be a good springboard compared with somebody without a degree of a similar age] in almost every other profession." That is only true where the degree either provides you with extra knowledge or skills which are directly relevant, or where it proves you have other qualities which are directly relevant. The qualities needed to complete a Masters degree, although not to be sneered at, are not relevant to aviation. They will certainly not harm you, but I wouldn't expect them to help you too much either. The same, as I said, is true in the area of IT that I work in - anything beyond a Batchelors will not generally help your career at all, even if it is an IT-related subject.
FFF
--------------