Property has infrastructure like water, roads, electrical, sewers, etc running to it that needs to be maintained. It also has things like fire fighting police surveyors etc that need to be paid in order to maintain society. Everyone could work in a city therefore the city/county/state would collect the income tax but the local town you live in doesn’t get any of that money.

I’m pretty sure open source means that the source code is open to see. I’m pretty sure there is open source things that you need to pay to use.