(Bloomberg) -- Marc Benioff’s cash pile grows a bit every day, thanks to a unique selling strategy unlike any other billionaire tracked by the Bloomberg Billionaires Index.Most Read from BloombergCitigroup Offers Partial Early Bonuses to Encourage Staff DeparturesJPMorgan Is in a Fight Over Its Client’s Lost $50 Million FortuneElon Musk Is Planning a New University in AustinTesla Recalls 2 Million Cars to Fix Autopilot Safety FlawsFed Pivots to Rate Cuts as Inflation Heads Toward 2% GoalSince Ju