Some people just don't get it. The character who lives up to this trope this is a relative of the Cloudcuckoolander but with much more sinister overtones. They seem to live in a world of their own, they may live by the mantra of Screw The Rules when the "rules" are actually hard facts. They will stubbornly insist "their" reality is the true reality in the face of evidence to the contrary, much to the frustration of others and sometimes danger to companions, underlings, peers or themselves. If anything actually manages to pierce their iron-bound conviction, a breakdown, villainous or otherwise, is likely to ensue.