I will state plainly that I do not think you are asking this maliciously, and that instead you are asking from curiosity. From that perspective, though, I am a bit flabbergasted.

Are you truly curious as to how it might not be A Good Thing that those engaging in high-finance capitalistic money making programs would have access to forcefully engaging a human being's brain into activity, with or without their consent, to such an extent as to drive motivations and bias neuronal activation that leads to what they think is a choice?

Said another way: Are you really curious as to how allowing a company additional tools to bias human interactions may not be A Good Thing?

If you need an example as to how this is clearly not A Good Thing, and that at least a portion of the world population agrees with that characteristic, that there are currently companies that have tried to actively do this already, and attempts are being made at least to fine them for their behavior as an attempt to curb it. Whether or not it succeeds is a question of governance at the moment since the US is currently under plutocratic control.

However, I would really urge you to explore this topic and really engage with what's happening due to the plutocratic class' capabilities over technologic change and societally enforced or biased adoption, and how they, in many extreme cases that are continuing to become more extreme, are not A Good Thing.

Simplest, most readily available example: https://ground.news/article/meta-says-us-states-are-seeking-...