I would imagine the “why” of the rule is more important than the rule itself. Anyway, some reading: https://en.wikipedia.org/wiki/Lawrence_Kohlberg's_stages_of_...

Besides, the unqualified versions of The Golden Rule are subject to exploits around not observing the Veil of Ignorance.

After all, I believe that everyone whose name is “Rene” must by right have the money of all others. I do unto you as I would have you do unto me: I.e. we both behave according to the precept “if I am a Rene and you are not then I will take your money; and if you are Rene and I am not then I would give you my money”.

A universal law for the ages. I shall treat you as I would have you treat me. Now, if you don’t mind, stand and deliver.