Internal Purdue memos sought to sell higher doses of the drugs over long periods of time. This obviously made the company more money, while the higher doses also increased the likelihood of their patients to develop an addiction. Many internal emails have proven that the Sackler family cared only about their sales numbers, not the safety of the patients who were taking the drugs.
While the Sackler family was pushing blame onto people who helplessly became addicted to their drugs, they raked in billions and billions of dollars. The family fortune is said to have exceeded $13 billion dollars at the end of 2018.