Colten Panter sold a pig for $6,000 last year—not bad for a high school kid who didn’t even grow up on a working farm. The swine was a spotted gal named Dottie. He got her as a piglet and sold her when she’d fattened up to 250 pounds.

It should come as no surprise that a young man with such a blend of barnyard smarts and business acumen should ascend to the presidency of the…