That depends on how you want to think about it.
I work in the geotechnical field, ( soils, foundations and concrete).
My degrees are in Bible (!) and even a Masters in Relgious Ed.
Not exactly related, huh!
Except .......... I am the total of all experiences that bring me to where I am now. my education is part of me; the choices I make, the way I view people, the relative importance of people and tasks all combine to make me who I am.
I agree with some posts above that true education is never wasted. In fact I do not like the current trend in education to view all education as simply job training. What a sad view of the purposes of education.