I'm curious if anyone who knows about accounting/etc - could he have skirted trouble by going deeper on "illegal" activity? Money laundering maybe, or partnerin

I'm curious if anyone who knows about accounting/etc - could he have skirted trouble by going deeper on "illegal" activity? Money laundering maybe, or partnering with arms dealers or the like? He had connections with the top 3%, that "access" was probably worth a good fortune alone. I'm sure he'd have been found out eventually, for other crimes that "pro-longed" his fund, but I'm just curious what a better criminal mastermind could've done in his shoes lol.