Well Democrats and liberals globally generally do regard the voting public as stupid and easily influenced by the media, why are stock market players any different, if not worse?
Because no one stays rich being stupid. If someone like you "knows" about media manipulation, wouldn't they know about it as well, and they would just ignore whatever "lies" the media is publicizing, and just do what they think is the best so they can remain rich?
But oh noo, you're the one who can see through the "media lies", those people playing with billions of dollars are just so goddamn thick!