Why Peple are like this....?

I ask to my self why the world is like this? People tend to forget the past and live today. Forgetting every thing that has been said or done.
I wonder some times that all good deeds are forgotten so easily by the people and the smallest of the mistakes committed are highlighted and quoted wherever possible.
Why me....What wrong i have done....what mistake i have committed?
I use to sympethize with people and do whatever can be done for them...in all the possible ways.....But believe me.....Eighty percent of the people whom i have lend my hand to take them out of ditches have either pushed me to the ditch and laughed at me outside the ditch or kicked my ass when they are out and safe...
People and fellow men....Never help people. Be selfish...Your world must be shrinked to your family..."My family my life " That must be the slogan for today.....

Never turn your eye towards a weeping person...Never give your hand to a hurted man...Never help anyone in your life...Life is so sarcastic..Some times we hate life like hell...