Maybe I understand Zombies a little bit

My daughter lent me her kindle so I could read "World War Z".  I was pretty reluctant but now I think I'm getting the whole zombie thing at least a little bit.  The Zombies represent the worst of the government/politicians/police/generally stupid people that now are in charge of everything.  The people who actually do something are the ones fighting them off.  When the final battles are taking place, people are put into categories as far as being useful or not.  Not useful include casting directors, HR managers, executives of all sorts, politicians.  I think you get the idea.  Useful people include maids, mechanics, the people who actually do something. I wonder if the useful people will win out in the end, or even soon.