I guess that would still apply to what you said though - it would take a very complex algorithm to come up with the optimal set of beliefs to minimize resistance you'd meet from others in the society you live in (I believe such an algorithm would not be unlike what goes on in the minds of many people).
But one could argue that good heuristics are insufficient for moral behavior in general -- sometimes massive heuristic search is required in novel contexts.
One may have "become rich" as a life goal which seems to have nothing to do with morality... but it actually does since achieving this goal invariable depends on getting along with others.
Because these are long term life goals, significant computation would be required to look ahead in complex and varied situations where your decisions may have ramifications many years later.
Like his father, my oldest son is probably one character trait short of the personality profile that produces serial killers. Yet he and I get along extremely well. His lack of caring what other people think is an antidote to me getting too concerned with what others think/feel/want from me. My ability to explain the social stuff is an antidote to his complete obliviousness to such things. He is often described by other people as a very nice polite young man. He has learned to be polite and respectful out of enlightened self-interest (as the saying goes around here "jail time would seriously interfere with his video game time").
And I have learned to stand up for myself and get the "doormat -- please wipe your boots here" tattoo removed from my forehead. I have come to believe that letting people victimize me is more immoral than "bitchily" standing up for myself. I have come to believe that agreeing to be a victim forces the other person into the role of victimizer when that may not be what they want at all. I think a lot of people (at leasts in America) see social interaction as limited to victim/victimizer interaction and many people who desire to be "moral" choose the victim role as the "better" of the two. But choosing that role denies both parties a humane, equitable interaction.
So I no longer really know what "morality" means. But I am generally less tortured by such questions than when I was younger. I do my best to figure out how to get my own needs met without making other people into victims or forcing them into the role of victimizer. It's not an easy path to walk. But it's a lot more pleasant than how I used to live.