Many people think economics is about money, but it's broader than that: it's the study of how decisions get made. Thought of that way, there's no human endeavor that can't be analyzed—and, with effort, improved—by economic analysis. The faculty of the CU Denver Economics Department have delved into subjects as superficially diverse as infant nutrition, intermarriage, sports, gift-giving...the list goes on.
An undergraduate or graduate degree in economics is superb preparation for a wide range of careers in addition to business. The analytical and quantitative skill you'll acquire are in high demand in the job market.