Teach your children two things:
-Teach them to be sceptical of social norms (in age-appropriate fashion)
-Teach them not consume mass media.
Explain why we want certain behavior in certain settings. Not just what behavior but why. Explain the rationale behind social expectations and decide together which ones are useful. The Tragedy of the Commons is very useful if taught at an early age. Be open about adult hypocrisy. Explain peer pressure early so they are armed against it. Explain the imperative of DNA to replicate itself so they have some armor against precocious sexual expression. (My SIL thought I was 'awful, don't I want them to have love in their lives?' My DSs have found partners whose attraction is personality and intellect not flash.)
If you allow them access to media, teach them to be critical. Explicitly teach them about marketing, manipulation, capitalism, wanting to exploit others for profit both financial and social, people with low self-esteem who try to feel better by putting others down, similarities and differences between cultural groups that others value or despise.
Teach them CRITICAL and analytical thinking. Start this as early in their lives as possible. You will end up with children who don't immediately react but think first about underlying causes. Yes you have to teach them coping and retaliatory mechanisms in addition. But they will be more satisfied with their handling and have better outcomes if they understand why Richard is being a dick and Catherine is being catty.