Or maybe I am wrong and "This time its really different".
People go where the mindshare is. It doesn't matter if its ad-ridden drivel and slop, it just needs to be popular.
The number of people who use OpenAI's products because "ai == chatgtp [sic]" in their minds is immense. Just like how to a ton of people, "online shopping == amazon".
I'm not arguing Amazon or OpenAI will always have this role, but while they have that the benefits of this position is immense.
In the recent past, there was a browser extension called "Honey", which purported to find and apply the best coupon code for you when you online shopped. Turned out they were actually (amongst other things), in cahoots with the shops by ensuring that you get only a modest discount, rather than the best available coupons (and this was paid for by the shop).