Nothing. Nothing qualifies several of them; the photo of Filippa Hamilton is noted in the blurb as immediately drawing ridicule from the public.

Or take this description of the edited image of Elvis:

> the United Press agency decided to create a mock-up of what the king of rock’n’roll might look like with the typical GI hairstyle, retouching a photo of the singer to remove his quiff (and leaving him with a somewhat disfigured head). “Not all manipulated photographs are intended to deceive,” notes Mia Fineman, a curator at New York’s Metropolitan Museum of Art

Only the headline says "images that fooled the world"; the article is about something different.

you can be fooled by something without anyone intending to deceive you, if people believed that is actually what Elvis was going to look like they would have been "fooled" whether anyone had that intention.