That's true, but conspiracy theorists are not typically out on some philanthropic mission. It's a hobby -- they are doing it because conspiracy theories are fun. That's why they aren't actually interested in things where there is real, tangible evidence. They want to find hidden clues and feel like they are in the know.

Of course, there is a very fine line between that and actually realizing something that the world doesn't see, but that's part of what makes it fun.