Poverty is the default state of any society. To survive and thrive specialisation is needed to grow productivity. If a field doesn't produce people working on i

Poverty is the default state of any society. To survive and thrive specialisation is needed to grow productivity. If a field doesn't produce people working on it would starve and die. In primitive societies old and sick were not treated well at all. To care for the "non-productive" members there should've been enough resources for them too. If you don't have enough to eat, the weakest usually died or in some circumstances left behind on purpose. So to take care of these members you need productivity to create enough resources for them. Productivity grows from specialisation and tools. When a carpenter builds a house he can't grow the food for his family. So he needs to swap his work for food. Bartering is easiest done via a proxy medium like money. The most efficient bartering is when the two parties voluntary swap goods and services. This is the free market. Keeping your stuff is "private capital ownership" and owning your tools to produce is "ownership of tools of production". This is the way groups of people get wealthy and have enough for all members of society. Free market capitalism creates the wealth for that, because of the ruthless market forces that penalise useless work for which no one is keen to swap their own work/products/money. This is why capitalism produces enough to share around if/when society decide to do so. All other systems have so much inefficiencies that they can't produce enough and there is nothing to share.