More than playing with words, not believing in god may be one of three things: irrelevant, a disadvantage, or a door to a better world. It is irrelevant if you observe the rites and traditions of your society anyway, e.g. if you celebrate newborn life at Shinto Shrines, and weddings and Christian Churches, and Christmas, and if your passing through this world does not intend to play with those "immutables". It's a disadvantage if you find yourself in an ostracized minority or simply disconnected from your neighbors. But it may also be a door to a better world if you yourself or your neighbor are gay, or if you yourself and your neighbor are medical researchers trying to understand why people age, or if you yourself and your neighbor are fighting for the rights of women in some dark corner of the world.
An atheist may write books where gods, angels and demons play with humans, and find it amusing and delight others with it. Or they may enter a church and find it pretty and feel empathy for the pain that move people to worship in such places. An atheist may come to terms with their irreverent faith on that pain not having to be an eternal part of the world, and may try to do something to change it.