I've learned more about very specific things at work, than I did in school.
But in my work I've never learned or used anything from the Mechanics branch of Physics, and yet I absolutely love knowing and understanding the principles of Statics and Dynamics, which I learned in school. That field, combined with some fundamental chemistry, describes so much of how the universe around us works, and I love having learned it, despite never using it in any capacity other than tutoring for my wife many years ago, and now my kids.
Those are just a couple of examples, there are many more from literature, history, government, economics, etc.