Myself, I think that longevity treatments are unlikely to remain unaffordable to the poor for very long after they are invented — even in a cynical world where the rich are greedy enough to try and keep it for themselves, old-age healthcare is really expensive, so societies which cause this to be cheap will outperform those that keep it for just the powerful.

Elite capture under the parameter of current human lifespans is extant and difficult to counteract. It stands to reason those negative consequences associated with elite capture would only be exacerbated under longer lifespans.

It’s simply an acknowledgment of a likely negative consequence.