Regulators would ensure there would be nothing to correct
ummm. I'll disagree with you on that point. Regulators don't have the clairvoyance to know the market needs. They do have their own self interests and politics of their organizations to inhibit reaching market needs...
It corrects itself to next abusing monopoly since everyone is priced out from the market.
Your complaint that every bad monopoly is replaced by a better monopoly with lower prices?