THE GOOD IN HUMANITY
The human existence was created for a purpose, or rather for a lot of genuine purposes, and to an extent self driven purpose.
The major reason, being the purpose to serve the Almighty. This is viewed by many in various ways(kind of worship) that narrows down to one goal: To serve God.
Other reasons include to live and let live. This, I have every reason to believe is the basic principle by which humans are governed. No one is bad or corrupt from scratch, everyone was born with equal perspective. Parents play a vital role in the corruption/correction of human mentality, then peer group. Like they say " show me your friend, and I will tell you who you are". Good company influence good acts/decisions, while bad company influences terrible acts/decisions.
We are all supposed to be our brother's keeper, that way the basic purpose of humanity is achieved.
http://buzzfeed.com
Imagine a world free of crime; rape, robbery, theft and all. These and more can be achieved if everyone habors good intentions towards their fellow species. Parents do the needful at the initial stage, then peer group with only positive vibes steer all to overflowing goodness.