What's so fascinating to me, is that the current opiate epidemic is largely centered in the US, as we bear the majority of the deaths. That attitude of Drs. over-prescribing, it definitely happened in the US, to various degrees in different places, and not that long ago.
Docs in the US tend to think they are above being marketed to, but Purdue Pharma knew better, and they paid their drugs reps a ton to go out to "everytown US" and convince doctors that they had made a non-addicting opiate. Enough docs bought it, and here we are.
How did they do? Well, 20 years ago drug reps used to be able to take doctors on trips: to sports games, to see the dog races, to museum trips, the price of a day trip with you and one or two loved ones was to sit through an hour (or two) lecture by a rep that convinced you to to prescribe a drug. Not a bad deal!
There were complex reasons why the opiate crisis started, but the environment was ripe for an upstart company like Purdue to come in, reformulate an old opiate, pretend the addiction problem isn't there, then sell a miracle drug because opiates are extremely effective short term analgesics. Long term, we're still paying for it!
I've looked a lot into the opiate crisis, and it's a pretty bad stain on the US medical institution, particularly our medical science. We fucked up.