Given the likelihood of divergencies between ascribed elite position and actual achievement and capacity, Pareto is a passionate advocate of maximum social mobility and of careers open to all. He saw the danger that elite positions that were once occupied by men of real talent would in the course of time be preempted by men devoid of such talent.
When governing or nongoverning elites attempt to close themselves to the influx of newer and more capable elements from the underlying population, when the circulation of elites is impeded, social equilibrium is upset and the social order will decay. Pareto argued that if the governing elite does not “find ways to assimilate the exceptional individuals who come to the front in the subject classes,” an imbalance is created in the body politic and the body social until this condition is rectified, either through a new opening of channels of mobility or through violent overthrow of an old ineffectual governing elite by a new one that is capable of governing.
Vilfredo Pareto. He’s not just the 80-20 rule, he also foresaw Australian 21st century politics.