It is difficult to create beauty and to preserve it

It is difficult to create beauty and to preserve it.. . Some works on this theme have already been created and several more will be soon. I am in searches again, I know more precisely that I have found something but thats hard for me to realize that many have found it too, maybe the feeling of beauty and harmony and other beautiful sentiments, but why preserving and conveying all this come so hard to people? Why is there so much "dirt" all over the world? After all, art also serves to achieve beautiful and radiant goal, so why many people fight with "dirty" weapons?