Life is like game of playing cards. What you have in hands vs the cards you need is totally different. When we are being nice, we meet bad people. When we are being kind, we meet people who take advantage of us. When we are being rude, we meet the people who are good and loving. When we are being angry, we meet people who fall for strike of our anger. This is why presence of mind and the mental strength is what you need in life. What you don't have but how you handle situation regardless decides your value.