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 bet she has a bunch of pirated content and anti-copyright remarks from the golden age of piracy as well.
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).
The big eye-opener for me in college was taking a class that put me up-close with artists and learning that there were, in the whole class, a grand total of two students who hadn't started doing 3D modeling on a cracked copy of Maya (and the two, if memory serves, learned on Blender).