Network's one of those films that feels more prescient with each passing year. It's one of my favourite screenplays. If you haven't seen it (you should - it's definitely worth a couple of hours of your life) here's the relevant scene.
I think the idea for this started as a thought about the stereotypical British knack for grumbling and complaining. Which led to thinking about the way most of us deal with bad or worrying political news - sharing social media links, clicking on petitions, or making sarcastic comics. But so few of us get involved beyond that. Having said that, this made me smile.