Gerv, I feel like you are trying to invalidate something that is generally well known: people are able to lead good lives without a directive or approval of god. I feel like we are going in circles so I am dipping out.
Don't be silly, of course it wasn't, but it was as you say societally normal. Our definition of "good" evolves. This is why today being gay or trans is more accepted than ever, we are becoming more accepting.
In any case, if god really defined good and evil, why did he allow millions to be enslaved? It doesn't make sense.