Something something a different enough value function is indistinguishable from malice.
More seriously, like the old adage about everyone being the hero of their own story, all parents think they have their children's best interests at heart. There's probably no such thing as universal best interests. Gets at some of the thorny problems - personhood, adulthood, cultural values.
It depends on the person, and it depends on the religion. There are positive and negative values, and a misaligned person may well believe they are doing right but actually causing damage. That is why humility, compassion, and honesty are prerequisites for all successful undertakings.
The difference between a malicious value function and unethical conduct is intent; at least in some systems of ethics. Beyond that I think the discussion shifts to the realm of philosophy papers and becomes unsuited for HN comment boxes.
More seriously, like the old adage about everyone being the hero of their own story, all parents think they have their children's best interests at heart. There's probably no such thing as universal best interests. Gets at some of the thorny problems - personhood, adulthood, cultural values.