I've always thought "Well they're just manipulating online opinions" but the capital and blm riots have shown that online opinions can have real world impacts.
Family and friends often are distressed by the state of the world, where their view of the world is social media. But how much of social media is real? How many of the radical opinions expressed are made by real people? Of those real people, how many of them were influenced by bots or "computational propaganda"?
I believe that we, even really smart engineers, are easier to influence that we want to believe