George Ruth's $8M net worth came from disciplined wealth accumulation across an era when he basically invented the modern endorsement playbook. He signed deals with Spalding, Christy Walsh's management company structured his barnstorming tours to maximize licensing revenue, and he owned property in Boston and New York. Sure, he blew money on restaurants and nightlife, but his infrastructure was built for compounding—real estate holdings that appreciated, contractual revenue streams that outlasted his playing days. Joe Louis, by contrast, was the highest-grossing athlete of his generation at $4.6M earned, yet his earning power became a liability rather than an asset.

Louis's catastrophic wealth destruction came from three structural failures. First, the IRS treated his boxing purses as ordinary income in a steeply progressive tax bracket (he owed roughly $1M in back taxes by 1954—unthinkable for an athlete then). Second, he had zero business infrastructure; his managers took massive cuts and he had no equity in anything. Ruth had Walsh and ownership stakes. Third, Louis's lifestyle was engineered to fail: he bought cars, jewelry, and maintained an entourage that cost roughly $2,500/month in 1940s dollars while his fight purses came in unpredictable lump sums. Ruth spent heavily too, but his investments—real estate, brand licensing—created residual income. Louis just spent.

The brutal irony: Louis earned roughly 12.5x what Ruth did in nominal dollars, yet ended up with 62.5% of Ruth's wealth. This is the original wealth destruction story in sports—not because Louis was extravagant (he was), but because he lacked the business scaffolding to convert earnings into generational wealth. Ruth got lucky with smart representation; Louis got systematically extracted by everyone around him while inflation, taxes, and lifestyle deflated his fortune in real time.