I’d argue it’s the opposite.

Look at what’s happened since Oxycontin was heavily regulated.

Opioid deaths in America have exploded by an order of magnitude.

There’s a direct correlation between higher regulation of OxyContin and opioid deaths in the U.S.

The Sacklers have done illegal stuff. Misrepresenting the addictiveness of their drugs (well, it was immoral and wrong…it’s not clear how illegal it was).

But it’s quite clear that America had a parallel opioid crisis going on. By making OxyContin easily available, ie, a slow acting opioid (it had to be crushed to be fast acting) that was produced legitimately and had a legitimate supply chain so people were able to get exactly what they wanted, Purdue Pharma helped keep the number of opioid deaths under control.

IOW, the U.S. has had an addiction crisis that is independent of prescription drugs whose cause is not clear yet because everyone has thrown the blame on Oxy instead of researching it. This is the same kind of drug crisis that hit inner cities in the 20th century but has hit rural areas in the 21st century. By providing easy access to regulated and legitimate opioids the Sacklers may have marginally worsened the addiction crisis, but they minimized the number of deaths and severe negative impacts.

The moment Oxy and the other opioids were made less easy to get, the underlying drug crisis hadn’t gone anywhere, so instead the people suffering from the crisis had to get their opioids from illicit sources as opposed to the pharmacy, exposing them to all sorts of unregulated drugs that had all sorts of nonsense like Fenranyl mixed in, which causes the actual negative impacts of the drug crisis to explode.

The funny thing is that when the entire country was just absolutely united at making the Sacklers the big bad evil, the actual people working on the ground trying to help those who were facing this drug crisis were predicting this exact situation and were asking authorities to not clamp down on Oxy. But they were all ignored and so we have a situation where opioid OD deaths have gone from a consistent 10-15,000/year (a rate which preceded Oxy) to about 50,000/yr now.