Even over in England the Queen is 95 years old, and her husband who recently passed was 99 years old.
American politicians also seem to live long, just look at the politicians at this link, updated in 2020.
Former President Jimmy Carter, 96. His wife, 94. Dianne Feinstein, 88.
I could go on and on and on just using American politicians, current and former, but the point is their average life span appears to be far longer than the general populace, moreso than what superior medical care can explain.
Many would argue that members of congress and world leaders have access to better healthcare than the average citizen, and that is a point well made, but the largeness of the average gap between the so-called "elite" lifespan in comparison to the rest of the population, goes far past that argument.
Using young blood to prolong the life of the older.