A fundamental engine of democracy is found in the dynamic of the desire to be right (consistency) and the desire to connect (immediacy). Righteousness of any sort is decided by humans. Belief in a divine being communicating a moral code still requires a human mind to decide to trust that it itself can interpret the moral code. Removal of a divine being changes nothing, righteousness is a decision by the human mind to trust in a moral code. A moral code gains traction by the amount of visible support from others.
Humans are social animals, we are meant to be in a group of some unclear size and have an inherent instinct to connect. We enjoy conversation. We enjoy the fleeting sense of hierarchy which emerges from correction, most commonly the correction of another although occasionally the correction of ourselves. We enjoy conversation, and conversation draws righteousness from immediacy of moral code & consistency of moral code.
So our conversations, whether of a serious or casual nature, our conversations have a dynamic of righteousness. Of course, there is spontaneity, other forms of playfulness, emotional release, personal revelation and so very much more to conversations than solely righteousness. Nevertheless, the dynamic constrained within our instinct to connect and our enjoyment of righteousness help to propagate good ideas through our society, improve political opinion of the citizen and the political structure of the institutes locally present.