There is a place in the future where the past of a man will always raise its head. In that time, it will be karma's turn to reward you of all your deeds in the past.
The pertinent question now is, what are you sowing today, is it good deeds, are you nice to people, do you treat others with love and respect or do you look down on others, treat others with contempt?
If you belong to the category of people that treat others as though there is no tomorrow, let me shock you, karma always has it's way.
Be good to people you see on your way up, because you may also see them on your way down
Life is so short and unpredictable, you never know who has been position as a destiny helper for you. Never judge others based on their present state, look beyond now and always try to make positive assumptions projecting into the future.
If only everybody or at least half of the 7.6 billion humans occupying the earth have the understanding of the concept of treating others nicely, then world will be a better place to live in. True peace and fulfillment is not just in abundant of riches but in knowing that you played your little part in making one or two people happy in life.