I would say that the mobile phone manufacturers are, if anything, analogous to tobacconists. They do provide access to the noxious stuff, and one may argue it is their main source of income, but they also provide other non-harmful and even necessary products (depending on culture, in Spain for instance tobacconists would traditionally also sell postal stamps, bus tickets, etc.).

You don't need to run social media software for leisure. My phone is an expensive paperweight that remains off/home most of the time...