I think that the nature of some people, whose lives slowly evolve into a time of complete indulgence, and isolation from simple reality, is that, because any of their actions cease to have meaningful consequences, their detachment from reality increases, until reality, in the sense of the world inhabited by the rest of us, simply ceases to exist.
Of course, if you are a sociopath, and I firmly believe that Mr Trump is, then that detachment from reality goes even deeper than for someone with a balanced approach to living in the real world