To treat all people in the country as worthy citizens. Equality. Guarantee a decent wage. Provide security and safety. Provide education. Care for those who cannot take care of themselves. An unwritten rule among citizens to realize they are part of a society and have a role in it being a good place.
Even civilized countries basically work on the ideal of being civilized, but we, they all fall short in one way or another. It’s all a work in progress.