If you were to examine the root cause of most addiction issues you would be very likely to find an underlying root cause, whether it's financial stress, abuse, ptsd, etc. Each individual would have their own unique set of circumstances that would lead them down the path of addiction. Suggesting some people deserve addiction or somehow asked for it because it wasn't prescribed by a physician is very flawed. Nobody sets out choosing to be addicted to a substance, and rather than demonizing those that end up with addictions it's far more productive for society to help those people to beat the addictions and allow them to return as healthy productive members of society.