After studying penmanship, bookkeeping and business law in North Central College (by then Northwestern College), he failed as an owner of a local hardware store. Gates became interested in barbed wire and became a salesman for the Washburn-Moen Company. When he was assigned to the Texas sales territory, he learned that ranchers were adamant about not buying his product. Gates staged a demonstration of the wire in San Antonio's Military Plaza with charging cattle failing to break the barbed wire fences he had set up. He then proved very successful in selling the company's product, and went on to start his own barbed wire manufacturing business, which eventually led to the production of steel. In the process, his company was purchased by J. P. Morgan's U. S. Steel. Gates was not invited to become part of the company, and he fought back at Morgan for many years through a series of business acquisitions and sales; both men were key figures in the Panic of 1907.