Walmart’s CEO Doug McMillon out-earns the average American’s salary in less than 20 hours—during a typical 30-minute commute, he’s already made $1,563

Millions of Americans are shaving down their grocery budgets and putting off buying a home as wages fail to meet rising costs of living. Meanwhile, the nation’s top CEOs are enjoying eye-watering compensation packages—and some earn more than the average U.S. worker in less than a day. The leader of America’s largest private employer, Walmart’s Doug McMillon, can even snatch up a home in less than one workweek.

McMillon, who has been leading the $905 billion grocery chain giant since 2011...