Know how to establish what the moral values of a society really are.
Some moral values in a society will be like shifting sand. Such values will include dress code and ways to address strangers etc. More permanent moral values are likely to be reflected in the laws that the society creates for itself. A general study of laws may reveal that there are very many laws that relate to personal property and this may lead one to infer that this society is one that values the rights of individuals to possess or own things that others cannot have general access to.
The knowledge named 'Moral values of a society' is considered to be rather important.
In addition, the knowledge is thought to be mostly very difficult to replace, it is learned mainly by experience but needs study, and is known fully by 0% of the Group.