re: #31 The Ghost of a Flea

The Big Short.
Betting on Zero
Enron: Smartest Guys in the Room
Requiem for the American Dream

Not a documentary and quite violent, but consider Narcos, which is all about the Columbian cocaine trade and the CIA. The first two seasons are drawn from a book called Killing Pablo, and is about the eponymous Escobar.

Co-sign. Narcos is excellent.