Do you believe justice? Do you all criminals get right punishments and good people get right benefit from their attitude? If there are no heaven and hell after death how it can be fair?
This question was not in response to any particular article.
Atheists believe in the justice and fairness that humans can manage to cobble together. It's not perfect, and it's certainly not absolute, but's it's all that we can demonstrate actually exists.
Is it ultimately fair that a war criminal dies a peaceful death in the Bahamas surrounded by loved ones? Nope. The average person, theist or not, would love to believe that criminals will ultimately get what's coming to them, whether it's Karma, Hell, etc.
That's wishful thinking.
Instead, there's an empowerment to realizing that, if you want justice and fairness, it's up to you, me, and everyone... instead of "passing the buck" to some entity or realm that we have no good reason to believe even exists. It's up to us to do what we can to maximize justice and fairness.
Imagine you come across a murder scene, and there's no police to call. You could form a taskforce from people you know to try to investigate the murder, find the murderer, and bring him/her to justice. Instead, you shrug your shoulders and say, "Nah, the invisible magic police will get the bastard.", and then move on. The murder isn't caught, and is not brought to justice, because you have a false belief that there's some kind of supernatural criminal justice system in place.
It's a dangerous mode of thinking. It alleviates the perception of responsibility and onus on individuals to actually do something, instead of waiting for justice to spontaneously happen - in another undetectable plane of existence - at some arbitrary point in the future.
For a large percentage of the human population believing in supernatural justice... the amount of damage that has probably caused to the real pursuit of justice is immeasurable.