I do believe that you can tell store fronts not to market literal gasoline as a restorative tonic without automatically escalating to violent raids. As far as I can tell, a rule against marketing gasoline as a restorative falls afoul of the standard you declare in your first sentence. People aren't very comfortable shrugging and not doing anything about perceived problems (illicit distribution of the restorative gasoline), but we'd be better off if we did that more often.
(I do understand that the example is ridiculous because there is no demand for a restorative gasoline tonic amongst competent adults, it's just that there is ample evidence that people want some assurances about safety. A less ridiculous example would be requiring people buying cocaine to go through some sort of educational material that made the risk of forming a habit clear, and regulating the manufacture of the cocaine that is eventually sold so that it is not adulterated)