The biggest problem with modern capitalism is that you don't know if something is "good" before you buy it. The information asymmetry / obfuscation ensures that.
Information asymmetry and lack of regulation allow bad businesses to stay in business. I’m sure you can recall quite a few if you sit down for a minute.
Also poverty (lack of options). Think of how the 70% of the population who barely gets by would read your comment on being cheap.