9. Rafael Caro Quintero: $650 million
Rafael Caro Quintero was said to have been one of the most dangerous criminals in the ‘70s, for he was considered everybody’s friend. If Rafael had problems with somebody he didn’t like, his drug-affiliated friends would “take care of it.” Quintero made an astonishing amount of money throughout his time as a drug dealer, grossing an incredible $650 million prior to being arrested for drug trafficking in the United States. He was released from prison in 2013.