" In capitalism, capital = power."
It's never that simple. Money is not wealth, nor power. It's a veil behind which actual wealth (which includes power) is concealed. The machinations of corruption are not deployed by money alone, but through myriad foetid pathways that corrupt all the values men have. You could as easily have said 'Rent = money', but then I would point out that my rent is not paid in money this month, the next, or the month after.
Epstein did not inherit money. He extorted it. Most of his wealth didn't derive from money, but corruption. The world is not so simple as political placards declare.
An exception only confirms the rule.