Southern Kross had a great response.
I took the road of getting both a liberal arts degree (in Rhetoric) and a practical degree (in Economics).
Both are so crucial to every aspect of my life and job that I couldn't really tell you which was more important.
My Economics degree gave me a firm foundation in an extremely important paradigm of thought.
My Rhetoric degree pushed me to develop my ability to, as SK pointed out, critically think.
As such, my Rhetoric degree greatly improved my ability to actually understand, and put in the proper context, that which I was learning in Economics.
Without my Economics degree, I would've been very worried, though, as I wouldn't have had any practical degree to put on my resume, nor any solid understanding of how the "real" (i.e., economic/productive) world works. (That being said, I should note that I took a 5th year so I could, among other things, take Finance and Accounting courses through the Business school, as, after four years of study, I felt even Economics was too up in the air to be very practical.)
However, I consider my Rhetoric degree to be the core of my soul -- I agonized, on a very deep/personal level, over the books, thinkers, and ideas I studied in those classes. While economics is certainly central to my understanding of the world, it is so in a different way than the ideas that I studied in Rhetoric. I'd probably be a lot less self-aware, a lot less aware of subtleties/nuances/depths/intricacies in the world and others, and I'd probably be a nihilistic douchebag without any real grounding in the world, if it weren't for my Rhetoric degree.
I kind of forced a midlife crisis on myself in my early 20s, which, as Orobas pointed out, probably led to the development of my Fi. This probably wouldn't have happened til much later, and, as a result, I probably would've succumbed to an extended nihilistic malaise throughout my 20s and 30s, if it weren't for the books I read, papers I wrote, professors I engaged with, and ideas I obsessed over while getting my degree in Rhetoric.
It also improved my ability to read, write and think.