Valencia

Valencia Merble is at the very least, unlikeable.  But really, there's so much more to her than people realize.  Other than her desperate clinginess and obvious lack of intelligence, there's also her most definitive personality trait: her constant consumption.  No evidence can be found from SH5 to prove that Valencia has ever positively contributed to the world.
  It is believed by many that Billy Pilgrim is the embodiment of the typical American soldier.  Pilgrim is cowardly, unpatriotic, and not to be harsh, but kind of pathetic.  These are traits that cause American stomachs to turn, as America takes the utmost pride in her soldiers.  However, all variety of outsiders to this culture can agree to seeing the similarities between the character and a larger, real life figure.  Perhaps in keeping with this tone, Vonnegut has modelled Valencia to represent the faults of society.  Although Valencia means well, the focus for her character is on her flaws, namely society's flaws.
  The major flaw that Valencia and society have in common between them is their constant consumption and lack of production.  the world is beginning to mindlessly use, waste, and destroy, without a second thought or a backwards glance to the efforts that generated their means of consumption.  Inventors and humanitarians alike are becoming few and far between, and as such, it seems as though humanity is going down the drain.  Perhaps in the creation of the character of Valencia, Vonnegut was creating a model of our possible future so that we can all strive to avoid this fate and to see the error in our ways.  We could all help humanity out if we all tried to be a little less like Valencia Merble.