Everyone has needs. Even if all the "uninformed people" woke up tomorrow morning, suddenly super-informed and disillusioned with all corporate-produced products, these people would still have needs. Eventually someone would start a business to sell products that meet those Needs. Probably some of those businesses would be publicly traded, as it's an effective way to continue to grow and raise capital. Oops, just created another corporation.
@conception_native_0123 I agree with you on one limited point: Corporations "help" consumers "understand" what they "want". So even though nobody is forcing anyone to buy an iPhone, you are correct that the company producing the iPhone does influence the very fact that John Doe wants to buy an iPhone in the first place...Of course.
But if John Doe woke up one day, suddenly smitten with the realization that his wants and needs were being manipulated and wanting to cut ties with all of it, it would still only be a matter of time before a different corporation (or perhaps even the same one! LOL)--found out what John Doe wanted and needed
now, and served that need with a new product.
I like to think of myself as more detached (than average) from FADS about what is cool or necessary to have in life. I am sure a lot of people think that, with varying degrees of truth. I laugh at $1000 phones and use a $25 LG Risio, myself.
Then again, some of this is just due to people having different values--whether they are being manipulated or not. My parents scratch their heads at how much of my budget goes to taking trips. I scratch my head at their $400 purebred german shepherds and $10,000 piano. But each of us finds great value in what we spend our money on.
You are correct that, it is theoretically possible that modern society were to undergo some sort of waking-up transformation, becoming drastically more aware of marketing manipulation and somehow becoming drastically less swayed by marketing.
But I doubt that people will ever cease to have wants and needs (no matter how pure their origin were to become), and any successful business would just have to target those.