Money was originally invented by the man as a common denomination. It was mainly to be used for exchange of goods and to save the earnings in the form of money. In the old days, money was secondary to the value of the man.
But as the time progressed, the value of money increased tremendously and the value of the human being decreased in comparison to money. We need money for buying food and for arranging basic amenities. We need more money for living comfortably. We need to earn even more money to live luxuriously. We need to earn more money for saving for the safety of ours and of our family members in the future against any calamity.