Slums and cleanliness of society are absolutely about poverty. And to say otherwise is so utterly deranged I don't know where to begin..... The non slum places are kept clean not by pride, but by people being paid to maintain and clean it....
Like I said, it requires nothing more than picking up a broom. There are many places that are quite poor, and yet instead of graffiti you'll see a little old grandma planting flowers in front of her shack. And we should be supporting her, not the people who'd escape reality in a puddle of their own making. To say otherwise is so utterly deranged that I don't know where to begin.