Would god punish you for not believing in him or her just because you had no proof?

If you're a good person and don't believe in god but believe in morals and ethics, why would god punish you just because you were unable to believe in something so superstitious? Would a person who believes in god but doesn't behave properly have a better chance of getting to heaven if he or she prays a lot over a person who never prays but has a pure heart?