That's if the point of an education is to get a job. The point of a liberal arts education is not to get a job, but to have a well-rounded background in many areas and capable of a depth of thought. Many things in the world are not as they appear on the surface. That you may find a job given that education would be a wonderful thing, but it isn't the point.
I would argue the point of a STEM education is also somewhat misguided. The point it to be proficient in a particular field or more than one field. The fact that you can get a job on that basis is secondary. And if you never learned how to think hard as a result of your education, you will sooner or later fail in a technical field.
All of this collides with the brutal fact that without a job, you aren't going anywhere no matter how educated you are. However, if I stuck to only learning what I *thought* I needed in math and logic, I'd be damn near useless in my current position...hell, in most of my previous positions as well. If I never learned anything outside of STEM, I'd be useless as well.