Thanks for the response
When you say many ancient societies had some form of the golden rule, you are illustrating that this line of thinking came from religious tradition; Jesus, The Buddha, Confucius, all had a version of the golden rule, and that is where we first see it in ancient literature.
The sacred texts of Buddhism, Judaism, Christianity, Daoism, Hinduism were very radical for their time in terms of a binding ethical vision. If one looks at the pre-Axial age religious sources one does not see anything like them; not in the pagan Roman texts, not in the Greek Homeric canon, not in the pre-Islamic Arabian sources, not in the Mesopotamian epic literature, and not in the pre-classical Hindu Vedic sources. Those sources are either just focused on the ritual of cosmic maintainance, or the ethical framework focused on the aquisition and maintainance of reputation, bravery, loyalty, valor, an abiding concern with what other people thought of you.
Prohibitions against murder, stealing, and rape are more like a criminal code rather than a comprehensive universal ethical framework. Being able to restrain oneself from committing murder, rape, and theft is the absolute bare minimum, the bottom of the barrel, the lowest possible bar to clear towards living a decent life. There's a lot higher ethical bars to clear than that.