Here's an interesting (but nonetheless disturbing) article i found on the net.
Human Compassion Surprisingly Limited, Study Finds
I found myself nodding as i read about the study, and it's really disturbing. But it's true. Now i wonder- why?
I have a theory in mind, though.
Nonetheless, as the researcher Paul Slovic said, "The studies ... suggest a disturbing psychological tendency...Our capacity to feel is limited. Even at two, people start to lose it.”
I wish i can make a researcher related to this matter in the future.