Disinformation's tools emerged from science and art.
And furthermore: disinformation can happen in politics of course, but also in science:
for example by launching ideas which have not been proven exactly until the moment of publication. e.g. the thought that time runs backwards in parts of the universe:
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Archbishop Oscar Arnulfo Romero († 1980) was elected archbishop because he was very conservative. But when he saw how more and more priests and definitely innocent people were murdered, he changed his attitudes and became one of the sharpest critics of the government. He gave shelter to those in danger, never stopped talking against violence and his Sunday sermons on the radio where moments to tell the truth to the Salvadorians, also mentioning the names of the disappeared or killed persons. As Romero got extremely popular and dangerous for the population he was killed by death squads, while reading a sermon.