Consistently finding and hiring the right people over time is just too difficult to be truly sustainable over multiple generations. A project will always be a few bad hires away from collapse.
Maybe a sufficiently advanced AI serving as the "right person" in a governance role is the long-term sustainable solution to this, once that is a capability. Sounds crazy now, but probably less so in 10-20 years.
Getting the right people is a really hard task, one really has to wade through several thousand people to find that needle in a haystack.
Defining what is 'right', is like defining what a Unicorn is i.e almost surreal.
>how could you design governance for a high-end nursing home so that the facility perpetually serve the rotation
I have been thinking of this problem for decades I think, and unfortunately the solution seems to be what I have alluded above.