well I'm not sure what exactly you're asking but i'd talk about the idea of "mob mentality". the community was unaffected by the lottery because they figured it would not happen to them. when a group...
There are actually a couple: 1) Man's inhumanity to man 2) How people blindly follow a tradition even it's morally wrong 3) How people are willing to harm another to keep themselves safe
she wrote a short story about a small town in America that had a lottery ever year on June 27th. the way you play is that if you got the black spot on the piece of paper, you were stoned to death.