Very much so. The fascination to me with metaphor is that it's
   analogy but more: it can take something out of one set and apply
   it to another set that's really not related at all, just by
   *similarity* - and it can be the most tenuous similarity... and
   the metaphor is *so convincing*, even when the relationship is
   atrocious when brought beyond a basic similarity. My favorite
   (least) example is that of comparing groups of people to
   infections in the body. What things have been justified by that
   metaphorical comparison! Such atrocities against humanity
   because people were metaphorically compared to cancers and
   infections that needed to be cleansed, surgically removed,
   irradiated, ... [insert medical procedures used to combat such
   things... which become bombs, guns, propaganda campaigns... and
   all sorts of human nastiness... metaphors themselves justified
   by only metaphor....] We're so accustomed to hearing it, we
   hardly even hear it. But once you 'hear it'... you can't unhear
   it.