The surveillance price is necessarily limited in what information is used to set some individual's price: credit rating, purchasing history, browsing history, adtech bucket or profile (I don't know what the buzzword is). But that information leaves out a lot of things that go into making a decision to buy or not. The surveillance pricing is algorithmic, and at least at first, will be a hard number: "Here is your price, take it or leave it". My absolutely-without-underpinnings guess is that demand will go down for a lot of goods and services, but maybe it won't, I simply don't know, and I don't have the background to make an informed guess.
Why do corporations think this is in their own best interest?