This seems to be effectively what universities and research groups do. Providing administrative assistance, psychological support etc. to specialist researchers. (While they don't normally provide medical care themselves they often pay for health insurance.)
What would your proposed organisation do that they don't?
It would be aggressively personalized, e.g. I don't think even universities and research groups will just straight up do your taxes or plan your meals.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.