Sam Walton

Sam Walton built Walmart from a single Arkansas five-and-dime store in 1962 into the world’s largest retailer by 1991, with $44 billion in sales. His obsession with low prices and supply chain efficiency—including the first company-wide satellite network for real-time inventory—let Walmart undercut competitors by 15% on average. Walton’s cost-cutting discipline outperforms #2 Jack Welch’s Six Sigma in retail execution: Welch saved billions in manufacturing, but Walton saved billions in logistics, passing savings to customers and growing revenue 50% per year for two decades. By 1988, Walmart’s profit margins were 3.8%, lower than the industry average of 4.5%, yet its 38% return on equity was 2.5 times higher than rivals. Walton proved that relentless frugality paired with scale building can create a $500 billion empire.