Tesla was a pure inventor trapped in a scientist's mindset; Edison was a businessman who happened to invent things. Tesla filed patents but rarely owned the commercialization path—he'd sell or license ideas to survive, watching Westinghouse and others extract billions from his AC system while he chased the next obsession. Edison, by contrast, built General Electric as a vertically integrated empire where he controlled manufacturing, distribution, and branding. His stock stake alone was worth $100M+ because he understood that owning equity in the company that profited from your patents beats owning the patents themselves.

The deal structures tell the real story. Tesla lived deal-to-deal, often accepting lump sums or partial payments from wealthy patrons like J.P. Morgan—strategic funding that ran out when projects didn't deliver quick returns. Edison built long-term corporate structures with recurring revenue streams: GE didn't just sell lightbulbs once, it sold them forever, and Edison's founder's stake grew with compound success. Tesla's wireless energy transmission never commercialized (still hasn't 80 years later), so his most ambitious patent portfolio generated zero recurring revenue.

Finally, timing and market psychology favored Edison's narrative. He was a savvy publicist who understood the Gilded Age appetite for industrial consolidation—he positioned himself as the safe, proven choice and merged into GE at the perfect moment. Tesla died during the Depression, broke and eccentric, his reputation overshadowed by his failures to deliver on wireless dreams. Had Tesla died in 1920 with a locked-in GE stake like Edison, or successfully licensed wireless transmission as a service, the wealth gap would've been unrecognizable. Instead, he learned too late that in capitalism, the inventor's cut is always smaller than the businessman's stake.