They did everything they could to deny and disguise the negative consequences of the drug they pushed. Specific to the Sacklers, my wife was in medical school when the "pain scale" metric was pushed, which was specifically created by the pharmaceutical industry to push the use of opiates. They were very much aware of how addictive opiates were, and had no problem pushing them on people hoping to create lifetime users.

Fuck them in the ear with a chainsaw.