Drugs also have a large societal impact, apart from the personal body impact. When one or two people are addicted, it's largely "their" problem. But when a larger number of people are addicted, it can have a huge effect on the local economy, society, etc. There are some recent articles that profile small towns undergoing this issue.

(No idea if this relates to the burglary analogy, but I thought it would be a helpful point.)