Land enclosure. Screwed everything up for everyone stg
Microtransactions in video games. Remember when everyone got pissed over horse armor?
Trading Card Games. The whole trading card thing is about psychologically manipulating you into buying shit you don't need, shoulda been stamped out as soon as cigarette companies started doing it, but if you think about it the ideal capitalist institution sells you literally nothing and selling people heavy paper with little pictures on it is damn close to that ideal.
Software. Should be free, isn't. Blame Bill Gates.
Advertising. We all know about propaganda (even though we might disagree on what is and isn't propaganda at times) and we all know it's bad, but we literally let rich people propagandize us every single day in every single orifice.