>Ethics as opposed to morality is about codified rules That's not accurate. See e.g. https://plato.stanford.edu/entries/moral-theory/ https://plato.stanford.

>Ethics as opposed to morality is about codified rules That's not accurate. See e.g. https://plato.stanford.edu/entries/moral-theory/ https://plato.stanford.edu/entries/moral-theory/ section 1.2.1 "Morality and Ethics"