I think The Walking Dead flirted with humanity itself. Individuals always think they are the righteous ones. But what separates the good and bad in survival mode? Humanity itself is an ideology because who are we to claim to be civilized? We are humans, but are we really humane? The game reminds us that everyone is capable of turning demon. We hold some very dangerous negligence and immorality in our hearts, only to be revealed in a type of situation we aren't wired to handle. And any situation can have a different response from different people. So in that sense, humane/civilized is only an ideology. Just because we have a house, vehicles, job, government, churches, towns, police, etc. doesn't mean we are tame. Far from it. We are just in passing, enjoying the goods, and that demon will show when you don't know how to handle a situation. I think maybe it takes training of the mind like monks or masters of Aikido or something to still the demon.