Solzhenitsin fingered a basic prob. "the line dividing good and evil cuts thru the heart of every human being. And who is willing to destroy a part of his own heart?" (from Gulag Archipelago ) I reckon a second is rampant capitalism. "Capitalism eats its young "(K.M.) And lastly, because of our unaware state, most people don't take the sheer reality of the other as seriously as their own, if at all.