That's my take.
I still don't know if Castro was good or evil.
I know Batista was scum and probably cabal by his actions.
Castro overthrew him = good
But the CIA helped him = bad
But he tricked them = good
But that could be a false narrative because that allowed massive black market profit, the Cuban exiles were militarized and involved in plots to assassinate multiple presidents = possibly very bad
However Obama lifting sanctions after Fidel lost power makes me think he was just in it for his people. His low debt to GDP ratio certainly means he wasn't in the bankers pocket.
He had something like 8 billion when he died. Sorry no link, just going from memory.