Or in a more direct way, theory leading to public policy can be
  marvelous - eventually - but not without bloodshed. Or theory
  leading to policy can be simply awful without any of the
  marvelous! [or any combination thereof]

  One of the dangerous of utopian visions in general. "Well, once
  we get past this "rough patch" THEN everything will be "smooth
  sailing". But a cursory study of human history and it's never
  been so. I see no reason why that would change with future
  idealistic notions... so I'm always hesitant with regards to
  things approaching platonic forms but... again, I have a
  embodied cognition bias. I could also simply be wrong. My
  feeling of certainty and ways with words doesn't make me
  correct, nor does agreement [or disagreement] for that matter
  smile emoticon