You can treat people not how they treat you, but based on how God loves you, when you know the love of God. It’s no longer the worldly view of “treat others how they treat you”. Once you come to know Gods love for you and how much He loves you, your able to treat others based on just that truth alone. We are able to be servants just as Jesus was our greatest servant leader. We can be the example of Christ.
“Do to others as you would have them do to you.”