> It's something ridiculous like 40% of all pharma spending being advertising, so you'd also have a lot of advertising workers who'd lose their jobs.

Not sure where you got that number from. The industry spends about $30B in total on marketing, of which about $13.5B is for free samples and $9.6B is for direct-to-consumer advertising: https://www.biopharmadive.com/news/pharma-dtc-spending-outpa...