Heroin on prescription

Should we not concentrate on sorting out drugs/treatments for cancer, diabetes and the like.

I understand these people need help but it was a choice (althouugh somewhat helped by x,y & z)unlike cancer etc.

*not meaning to come across all daily mail etc.

Booze and fags have been widely documented to have a far greater economic/social costs than illicit drugs. Imagine some bar graph with long bars for booze and fags, and shorter bars for illicit drugs and the bars represent the cost...