> There is this disgusting belief in modern society that everything one does needs to generate money, otherwise it's not worth doing. Were we always like this?

Most of the world has always been this way. The idea of sharing and exploring for the sake of it was a Christian ideal that rose and fell with their influence in the west.

Multiculturalism exploits generosity; competing interests replaced shared goals. If you don't profit from your efforts, someone else will.

It's not speculative: if you make free space available to campers, the postmodern entrepreneur will sell access to it: https://news.ycombinator.com/item?id=36686672