Money and greed.

But you can help. Grab a grocery bag, go out side and pick up some trash. Talk to your neighbors. Go put change in parking meters that are about to expire. Go through a parking lot and put shopping parts in the corral. Get a bag of frozen peas and feed some ducks (not bread). Get some cheap paper plates and a marker or two from a dollar store, make happy faces and staple them up on telephone poles.

The more we act hyper-locally, the better we can make it. Maybe it will inspire othdrs to do the same. But even if they don't, you're still making the world a better place.