" The virus needed certain conditions in which to grow; its victims had to be willing to believe; they had to want, on some level, maybe even unbeknownst to themselves, to do what the virus would tell them to do. And they had to be greedy: for profit, for importance, for revenge, for entertainment, for adventure. Only the greedy could be effectively conned. One never read of en masters being taken in by scams. They didn’t crave anything, and, therefore, con artists couldn’t set the hook. "

― Nevada Barr , Winter Study (Anna Pigeon, #14)