It has been a usual practice that you need to earn money to live in this world. It is so common and basic understanding, so we do not even question why we need money.
Yes, money can buy food, clothes and houses that are necessary for us to survive. Without money, you cannot travel, or you cannot get medical services. You will be down on the street like a dirt, unable to do anything.
All of this, however, is only in the society we live. The current format that has been developed is consumerist society, which is money and power driven.
The more money you have and the higher position you are posted, the more respect you will receive and the more power you will exert.
Yes, it has been like that, you might say. Nobody questions about it.
Let us take a look at an example. A man owned a coal mine in the 1950s. He was enjoying the business and all the workers were happy with their income. In the 1960s, oil has taken over coal as a major source of energy and the owner had to close down the mine. He was concerned about all the workers and their families and had decided to change their business platform to tourism.