The entire point of any such system is the latter thing anyway, regardless of how you go about it. I mean the higher-level point, like “why do we have any system at all?”
i very much beg to differ. A poor but high aptitude student today is able to escape the "caste" they're born into. Under a true nepotistic system, this cannot happen no matter how much aptitude he/she possesses.
> regardless of how you go about it
i very much beg to differ. A poor but high aptitude student today is able to escape the "caste" they're born into. Under a true nepotistic system, this cannot happen no matter how much aptitude he/she possesses.