Tbh I don't know much about Toto's past, where did he make his money?
He was a racing driver in his younger years, but not with massive success I don't think - but his money came from investments. Wiki:
As an investor, Wolff founded Marchfifteen in 1998 and Marchsixteen Investments in 2004 which initially focused on Internet and Technology companies. He currently focuses on strategic investments in medium-sized industrial and listed companies which have included Williams F1, German HWA AG and BRR Rallye Racing.