Imagine two models for a moment. In one, everyone is free to advertise, and in the other, no marketing of any kind is possible (magically enforced somehow).
What's the difference between those two? Competing companies will occasionally edge ahead with clever ads, but in general they just cancel one another out. Having marketing exist isn't a "win" for companies, unless they have no serious competitors, because their competitors also have them.
One difference, perhaps, is that consumers probably get worse products due to ads existing. Ads create an additional path business success, even with lower product quality.
What's the difference between those two? Competing companies will occasionally edge ahead with clever ads, but in general they just cancel one another out. Having marketing exist isn't a "win" for companies, unless they have no serious competitors, because their competitors also have them.
One difference, perhaps, is that consumers probably get worse products due to ads existing. Ads create an additional path business success, even with lower product quality.