The issue is not dichotomic. There is value in enabling advertisements for products and services, the problem is in the unfettered overreach: the grotesque amassing of personal information and the near unchecked marketing of products that are (or close to) scams.

Case in point: the cryptocurrency scams that littered Facebook as late as a few months ago (I don't think they have ceased but I was kicked out then, maybe because I habitually reported these scams to no effect - except being bombarded with even more of them ...).

Sure. They know their value.

The problem is that’s hard for everyone downstream. I used to sell stuff on Amazon and EBay from surplus auctions as a side hustle. Initially you could run a sustainable business with 20-30% gross margins. When I got out, you needed 60-70% margins.

So you really need to be selling a lifetime customer with value beyond the first sale, sell some bullshit story, or junk/scam/stolen product high margins.

That’s why drugstores get looted… people sell toothpaste on Amazon.