Here is an important difference. A century ago, the predator (seller) and the prey (buyer) were on equal evolutionary terms. Each generation of humans on either side of the transaction came into the world, learned to convince, learned to resist, then passed, and some balance was maintained. In this century, corporations and algorithms don't die, but the targets do. This means that the non-human seller is continuously, even immortally, learning, adapting and perfecting how to manipulate. The target, be it adult, adolescent, or child, is, and will be ever increasingly, at a severe disadvantage.

And only recently could be optimized in real time, individually, for each target. I remember when there was a big moral scare about "subliminal advertising". People were appalled that an ad on TV could manipulate you without your awareness. That is 100% the business model of modern social media advertising.

It's not embedded in a specific ad, but the entire operation of the promotion algorithms.