Everyone is in it for themselves.

The world makes waay more sense when you really internalize that. It doesn't necessarily mean people are selfish, large groups often have aligned interests, but when an individuals interest alignment changes, then their group membership almost always changes too.

I'd be she has a bunch of pirated content and anti-copyright remarks from the golden age of piracy as well.

That's not true. Most people are interested in fostering a community, even when it means sacrifice.

There _have_ however been studies that show that this attitude is prevalent in (neoclassical) economics students and others who are exposed to (neoclassical) economic thinking: https://www.sciencedirect.com/science/article/abs/pii/S22148...

It's very effective propaganda. And we have a good example of it here. (Mot saying you're spreading it maliciously, but you are spreading it).