There are always consequences, Society forces consequences on actions, not some mystical creature. Being a Christian or follower of religion does not make you any better of a person the someone who does not believe in religion or 'god'. There is no proof of an afterlife, a heaven, or of a god.
Here is a simple test for you, take a proven fact, lets use water, water is made up of hydrogen and oxygen (H20) this is a fact, it is proven and undeniable, no matter what you say, what you think, how you read it, how you perceive it, the end result is the same, water. Water does not need you to believe in it for it to be true, it simply just is. Take the Bible and god, can it pass this test? No, it can't, religion needs you to believe in it for it to work, if you don't believe in religion and god, it simply vanishes, the world will continue, if you don't believe in water, guess what, you're still going to get wet when it rains.