I know the correct, most efficient way to prepare potatoes. Microwave them first. The actions are standardized but there is no intrinsic relationship between the means and the end. The categorizing of information about a culture in rather broad strokes which obscure cultural differences rather than reveal them. A value is a product of human need to cope with the human condition.
Values reflect the goals of a culture.
A balance of fluidity vs. firmness is necessary to move freely in another culture's value system.