What is it in humans that rehabilitates us in the eyes of those that watch? You can go thru life as a cynic, & disparage the human race for our ceaseless slaughter, but then you hear about things like a bunch of bystanders getting together to save a bear from a deadly fall off a bridge, and it makes you wonder.
What evolutionary advantage is there in saving the bear? Why did they do this? Don't ask Ayn Rand.