While superstar players in the National Hockey League earn substantial salaries and lucrative endorsement portfolios, accumulating a personal net worth reaching the billionaire threshold strictly through playing contracts is unprecedented in professional hockey. Legendary icons like Mario Lemieux and Wayne Gretzky built massive multi-million-dollar fortunes through strategic business ventures, long-term sponsorships, and savvy ownership stakes, with Lemieux famously leveraging deferred salary agreements to secure team ownership that later yielded massive payouts upon selling the Pittsburgh Penguins. However, individuals who hold billionaire status within the broader business ecosystem of professional hockey are franchise owners rather than former players—most notably Terry Pegula, the billionaire petroleum engineer and businessman who acquired and owns the Buffalo Sabres franchise, anchoring his immense personal wealth in energy investments and multi-sport ownership properties.