Now, try building a house by negotiating with the people who mine and harvest the raw components, the people who transport the components to the processing facilities, the people who actually build the house, and those who harvest, build, and transport the items you need to turn the building into a home. Now do this with the actual workers
The scarcity is not in the production outside of demand items (electricity, water, etc) but in distribution. Things like bad infrastructure, war, corruption are the true hinderance