You live in a society where almost everyone goes to work to produce something that they will not directly consume.
Humans figured out a way to organise everyone and get them to work cooperatively, it's the free market.
In fact, it couldn't work any other way. Suppose you had 100% altruism and everyone wanted to promote the "greater good". You wouldn't ever know how to direct people towards that greater good. You need prices to drive production.
You live in a society where almost everyone goes to work to produce something that they will not directly consume.
Humans figured out a way to organise everyone and get them to work cooperatively, it's the free market.
In fact, it couldn't work any other way. Suppose you had 100% altruism and everyone wanted to promote the "greater good". You wouldn't ever know how to direct people towards that greater good. You need prices to drive production.