If Dumbledore's plans can turn out right, there's obviously no real logical consequences. It's really interesting to contrast him with Snape. Like I said in the comment above, Snape actually does come across like someone cutting himself off from love because he's unpleasant and bitter and thinks love is for fools--which he should know because he actually loved and got hurt by it. Dumbledore seems to have just learned how to pretend to be a loving person because it helps him be a better manipulator. While Snape was responsible for losing the person he loved because he was unworthy, Dumbledore dumped the guy because he was Hitler, and along with that dumped any potentially squicky Hitler-ish qualities about himself.