That isn't realism, though. Is it realism to say that, outside of divine intervention, a human female cannot possibly be stronger than 18(50) while a human male cannot possibly be stronger than 18(00)? Absolutely not. It is bizarre silliness that doesn't even relate to any of Gygax's primary goals
And it doesn't even mesh with Gary Gygax's foreword in the PHB where these limitations originate: "You will find no pretentious dictums herein, no baseless limits arbitrarily placed on female strength."