There will always be hierarchies in life - it is an essential part of nature.
Tyrannical corruption is a rather plausible subset and outcome of such natural hierarchies... As such, the key essential is to strike a balance that keeps the propensity for such tyranny in a perpetual state of check.
Everything else IMO is fair game for the taking for those who are willing to sacrifice and work for it.
With regard to attaining a certain level of knowledge - like it or not - IQ matters... and is another matter for discussion relative to those less fortunate trying to run this race called life with IQ's beneath 90.
Such is a relevant topic worthy of future discussion and thought as to how to integrate the less cerebrally endowed successfully into a natural hierarchy that would otherwise render them obsolete and totally useless in the natural order of things.
often something I think about, because no doubt the worth of one life is not measured by its mental capacity and contributions to society come in all shapes and sizes. I fear that some of the social models that we hold up in high regard, like free markets, might not be able to balance out this inequality, for the sake of protecting sacred life.