I will bet his kids, grand, and GREAT-grandkids have enough to equal his WS stash.
Let's face it, old school USD has met new-school crypto; thus the saying: You're never too old to LEARN!!!
I can almost here him saying: Here kids, a few million...go see how much you can grow this...(mumbling BTC under his breath as a hint...(lol)
Billionaires don't get rich watching money fall on the floor. I assure you, he's made a buy or two (million) under a pseudonym.
Peace.