I started in engineering, and eventually got an Associate's in Mathematics and Science. I've used that in a lot of places -- math is very useful and knowing something about the sciences, ditto.
I then went into Psychology, and got a Bachelor of Arts (why it wasn't science, I don't know -- they CALLED it a science) in Psychology (with a focus on perceptual psych). That's been useful in a number of areas.
Finally I got a Master's of Science in Information Science, which I've certainly used in multiple areas.
So yes, I used them all for my career, even if (A) I didn't really HAVE a career until recently, and (B) none of them were EXACTLY what the career called for.