Upon the death of a rich tycoon, his last desires tend to manifest themselves in the form of an impressive static monument. The typical structure for charity work after death by a wealthy person includes inscribing a family name on the entrance made out of marble, giving the final cheque to some local charitable organisation, and dispersing the fortune in one generation only.
But a private fortune can do far more than sit inside a museum wing or fund a one-off building project. If the capital is deliberately uncoupled from personal vanity and converted into an active, self-sustaining financial architecture, it can completely escape the limits of a single human lifespan.