I am sure no one knows his net worth. Guys like that keep their assets hidden. Exposing his secrets opens up other's secrets. And they ALL do the same thing.
You can be sure any figures or sums we are privy too are only tips of the iceberg.
IOW, the elites all protect each other. When their are fractions and disputes, they deal with it the old fashioned way and it aint by disclosing their secrets to the slaves who make it all possible.