It is important if you think that everyone in the world should not suffer from genocide or hunger. These things are preventable and not necessary with so much technology now, which enable humanity to feed everyone and provide energy for everyone, won't go into details. It is important because living in Earth is not only about ourselves, we are all one. If you beleive in god, he would want you to care, not that I believe in a deity, I am atheist. Living is more than caring for yourself. It is about having an impact on many other peoples live. If you live for yourself, you don't contribute to the world, nobody will care you lived, you might not care. I don't know you or care much at all. Because living is not about how rich you are, there is a lot more to life than making money that the materialistic world we live in makes us beleive.
I do think that everyone in the world should not suffer from genocide or hunger. However, what can I do about it? As I posted initially, I could spend every waking hour for the rest of my life, and every dime of my money "fighting" these two things and it wouldn't make a dent in their occurrance. I'm interested in my family, my friends and myself. My world. The things that are happening to everyone else are not my concern. They are responsible for their own lives, as I'm responsible for my own. Being concerned about genocide and hunger is the same as being concerned about a car wreck on the other side of town. Not my problem and I'm not concerned in the least.