mini-states as champions

Interesting radio discussion yesterday (BBC Radio 4, Thinking Allowed) on conflict resolution. The conflict I am interested in is, how do you persuade wealthy and powerful people to allow land rent and alternative mini-governments? What's in it for them? Consider some other things that nations support:

• Nations compete to host the Olympics, and support world class sports, even though world class sports are expensive and elitist.
• Nations encourage and fund elite universities, even though those professors often challenge cherished beliefs.
• Nations rely on their busy cities, even though these cities are hotspots for crime and dissent.
• Nations try to attract giant multinational companies, even though those multinational companies have no natural loyalty to the nation.

My point is that nations like winners. They will put up with all kinds of inconvenience in order to have their champions. Now imagine if a nation allowed mini-nations to grow up within its borders. A land rent rule would ensure that the parent nation did not lose anything financially, even if the mini state failed. And some mini-nations would succeed. Successful ministates would compete on the global market, just as sports teams compete, just as all businesses compete. Everyone loves high profile success.
France benefits from Monte Carlo. Italy benefits from the Vatican. New York benefits from the United Nations compound. We could all benefit from high profile, successful mini-states within our borders.