While I don't completely disagree that personal responsibility is important, doctors need to pay better attention to their patients. If you're predisposed to addiction, you can get addicted on the first round of medication. When you get wisdom teeth pulled, you are in a lot of pain and oxy or Vicodin is typically what you get.
Once you're addicted, personal responsibility is pretty much gone. Opiates rewires your brain so that the only thing your body wants above all else is the next fix. It gets to the point that it isn't even about getting high anymore, but managing the withdrawal symptoms that are usually more painful than the original thing that led to the medication being needed in the first place.