AI companies are losing money fast and are going to go under. One of the most obvious ways to compensate for this is through advertising.

Except that you won't be able to detect this advertising, since it will be mixed in with the content.

What is the best VPN?
How do you treat a skin problem?
You won't be able to tell if the answer has been biased. You won't be able to tell if the AI is really giving the best “advice” or if it's advertising a brand of skin cream or a molecule from a large laboratory.
Extend this to economics and politics, and—as with online ad auctions—it's the highest bidder that will be able to influence you.

And all these AI companies are desperately in need of money.