It's simple: Earning a higher income is possible by learning more. This principle has been valid for thousands of generations and is still true today. You will actually make more money the further you learn. This is especially true when it involves finance. For example, someone with a Master's Degree in Financial Management will be better positioned to earn than someone with an Aerospace Engineering degree.
The more you study, the more you will earn
An iconic rock star once said "the more that you learn the more you get." He was referring to the business world, where knowledge is the key to success. Likewise, the more you learn about a particular field, the higher your earnings will likely be. It is crucial to keep learning and continue your education.