People who fund raise for non-profits convince the wealthy to part with their wealth all the time. If we changed society to make this the way to have a legacy as a rich person, then it would happen. Cultures around the world have convinced their wealthy and powerful to do far wackier things than endow an intentional community.
History shows us that the crazy thing to do is to try and force very smart people with lots of resources and power to do something they find distasteful. The same thing to do is to change how people think, feel, and behave, using historical models as precedents.