What you've described is basically the definition of Libel.
But as it currently stands, the 1% use the anti-libel laws in their favor to censor anything that undermines their power/credibility.
For example, if you're a senator and while I don't have proof that you are corrupt, you can't possible tell me with a straight face that you awarding a lucrative public contract to the company where your daughter is on the board of directors, is a pure coincidence or a meritocracy, even if the paper trail says it's all squeaky clean.