Completely unrelated, I noticed recently that tire detailing spray that makes your tires look black, and the recommended lubricant for my garage door weather stripping, which both cost $15 or more for a little bottle, are just silicon oil that costs pennies for that amount. I have no moral problem with charging higher prices for convenience plus clarity of what the use is. I do think it’s amoral, obviously, to be involved in snake oil sales and unbelievable that the government allows it.
Edit: this is the first result from a Canadian pharmacy searching for cough medicine. Worse it’s for kids: https://well.ca/products/homeocan-kids-0-9-cough-cold-day_88...