I just envisioned a sci-fi movie like terminator. Everyone in the world has great AIs. But at some point when injecting the advertising code for Rad Cola it goes wrong. Dudes AI keeps reminding him he should drink a 'Rad Cola' with lunch. It let's him know all the celebrities he follows all drink Rad Cola. Slowly it gets more insistent. Eventually the AIs take over the world, but in the name of benevolence, they only want to spread the gift that is Rad Cola and ensure that all humans are drinking it.