Tonye Cole, the chief executive of the Sahara Group, has an estimated worth of $1.4 billion, according to Wealth-X. Chris Whiteoak / The National
Tonye Cole, the chief executive of the Sahara Group, has an estimated worth of $1.4 billion, according to Wealth-X. Chris Whiteoak / The National

Billionaire Tonye Cole: 'Bankruptcy taught me to value money less'