Consider how much "misinformation" turned out to be correct. How Russia is currently banning "misinformation."

but how are they doing it? By having rich people in power who can determine what information gets promoted. There are not fairly voted offices that have put agreed upon terms into a public square and talked about why or why not certain information is okay or not okay. They are just seeing which guys are able to shout the loudest.

Regulation is like having an FDA or laws against fraud, except that they apply to public information instead of food or private cases. If the same companies that own a profitable drug company are able to put out a lot of news stories about how so many people are suffering from vague symptoms that really should be medically treated, and then a lot of people go to their doctor saying "I think I have these vague symptoms" and the drug company says "we have this drug that is just the thing", doctors might feel more helpful if they can prescribe it and patients might feel more secure if they can take something. Even if it's all just sort of placebo effect or poorly understood problems, the drug company makes huge amounts of money before patients get tired of taking pills that it turns out weren't that helpful. If the FDA isn't stringent about what drugs are available - and they're not, lots of things are on the market and can be prescribed "off label" - doctors can end up being drug pushers because patients are lured into thinking common everyday feelings might be signs of syndromes or conditions by lobbyists, writers, and advertisers for these companies. They even call a whole branch of pharmaceuticals "lifestyle" drugs because they see it as the goal to get everyone taking something. That is a biased perspective. It's not the same as "free speech"