The "typical rules of capitalism" don't say "price videos worth $2 at $100." Capitalism says prices are set by supply and demand. If you paid $5000 for a fake Rolex that was actually worth $0.50, would you not complain? Would that not be scamming? Or is that within the "typical rules of capitalism?"
How is that any different than an OF creator leading someone to believe that the video they are selling has content that is worth $100, when it is actually worth $2?
I'm exaggerating to get my point across, but your post makes no sense at all. Being a sex worker does not entitle someone to mislead people about what they are buying.
The worst thing is that OF actively promotes that kind of conduct by making it easy for models, often by default, to be non-transparent about what people are spending their money on. And they won't do anything about it after the fact.