There were quite a lot of people in chronic pain who were talking the dosage as prescribed by the doctor. The drug companies creating a campaign to treat pain with whatever it takes and this was pushed into the medical community and became the consensus that treating chronic pain meant as many pills as the patient needs so long as pain is managed. The drug companies had the same infactuation with he drug as you seem to have, but were also motivated by the high dosing turning into more sales and record profits and bonuses.

In their defense however, this was before the epidemic made it abundantly clear that this was no wonder drug and more like synthetic heroin.

Why would you be prescribed a pain killer like oxy "a few times" when it is meant for severe chronic pain and cancer patient not a few times in a persons life for temporary injuries? Fentanyl doesn't make any sense either and I have a hunch you are a regular recreational user at best but most likely a current or aspiring full blown junkie.