Tech billionaire Larry Ellison once struggled so much to pay the utility bills that kept his workshop running that he had to ask energy companies for extra time. Decades later, the business tycoon had no trouble writing a $300 million cheque to buy 98 per cent of a Hawaiian island that is three times the size of San Francisco.

Tech billionaire Larry Ellison once struggled so much to pay the utility bills that kept his workshop running that he had to ask energy companies for extra time. Decades later,…

Larry Ellison, the co-founder of Oracle, once struggled to pay his electricity bills for his computer and faced investor rejection while building his early software products. …