Why people became so greedy and selfish?

@mallu30 (464)
May 21, 2011 6:34am CST
Most of the people I came across are turned to be greedy and selfish only. The people who I came across are well settled in life and there is no any problems to them. Despite having all the things in life, still they are searching for something which they already have. Some people for more money, possessions of properties etc., I wonder why these people are so greedy?