"Dow Chemical is not responsible for Bhopal disaster that killed hundreds of thousands. They just released those chemicals into the air, you had to breath in order to be effected."
If a doctor perscribes you heroin because he read a paid-for-report by the Sackler's goons, then yes, they are responsible.
Not sure how you could blame a human for doing what their doctor tells them. Oxy is pure narcotic, and never should have been prescribed to anyone, but $$$$$ is a hell of a drug too.