Atheists are bad and believers are good?

On many laborer surveys mostly American surveys and polls are investigated about the impression of the people when they hear the word atheists and believers, religion, and no religion, they had to put religion because if they put atheist could lose their jobs, in personal presentations and when someone says, he/she is an atheist! a lot of persons think about a bad person, and when a person hear, is religious! Think about a good person. Without causes, what do u think of this survey? Y do people think this?