There's no better way to advocate for a group causing their own demise than to preach how innocent people outside the group are also dying from the same thing.
The same tactic was used with AIDS. Before prominent people of society came out as HIV positive, it was a disease that only impacted gays, Haitians and intravenous drug users who shared needles.
So, how did people outside that group get infected? Mostly by getting blood transfusions from a blood supply that was infected by people from that original group.
Research and treatment was stepped up when people who did nothing "wrong" contracted it.
I see the same parallel here. Most don't care if people illegally using a drug kill themselves. Their body, their life, their choice.
But, as soon as someone who did nothing wrong gets impacted, it becomes a priority to save their lives.
Same question as with AIDS: how did the innocents get exposed? That drug would not be as prolific today were it not for the users.
But, since people who did nothing wrong are affected, we now need NARCAN to save their lives.