Before moon colonies, we’ll be heading into the oceans and into orbit (note the orbital surface area of the earth is much larger than the ground / sea surface area). But as long as there are large wealth disparities, human knowledge and science will not be focused on supporting the world population. It will be developing Botox and grooming poodles for the wealthy.
The individuals within these communities are free to randomly move to any other community if they so choose. Both the communities and the individuals operate on the principles of self-determination.
A free-for-all, where everybody (or almost everybody) only cares about themselves, and nobody tries to protect the freedom of others, is a completely different situation than a society where everybody (or almost everybody) believes in protecting each other’s freedoms.
Instead of higher profits going to the producers, the extra money going into those industries just means there is more demand for those products and services. So the money is used to pay new producers in those industries, thus increasing supply – and everyone still has the same monthly salary.
If some of these stats aren’t what you’re looking for in a country (for example, you may believe the World Bank’s ease of doing business is more important than press freedom as measured by Reporters Without Borders), there are alternatives to suit many tastes.
You don’t build a house out of cash – you have to first trade the cash for building materials. You don’t eat cash, you have to first trade the cash for food. Thus the value of the cash isn’t intrinsic – rather, it’s social.
Where competition is dominant, we have examples like warfare and corporations fighting for market share. Cooperation within each group (whether the army or the company) makes that group stronger, and more able to outcompete their rival. However, because competition is dominant, the resulting system is that many of those involved (the soldiers killed or the employees laid off) will end up suffering.
If all the cells of your body were split off into individual, independent cells – their ability to adapt the environment to improve their own survival, at that point, drops to next to nothing. (And the same thing often happens to individual humans when they get lost in the wilderness.)
Now that all the money is spent, get the poor in your country to pay back the money, with a hefty interest, to the rich who control the banks. And if they can’t pay? Well, slash all social programs. Say austerity measures are all we can do at this point. Make the unemployed beg to be exploited.
If this reason becomes the primary reason (ie. the primary motivation in the child’s internal conversation) for eating vegetables, then it pushes aside all the other reasons for eating vegetables.