Not necessarily. Wasn't there an article recently about prescription drug abuse being more of a problem in areas of economic instability, higher stress, etc.?
In fact, the previous article in the blog is looking at the correlation between drug abuse problems and areas of the country that voted for Trump---a hypothesis being that poor social outcomes are linked with both political upheaval and addiction.
Drugs are both a symptom of other problems and a cause of new problems.
Presciption opiates are an example where the drugs were clearly a huge cause, not just some symptom of a social problem.