Working class such as miners, farmers, and city workers. and Royal class kings queens stuff like that.
People's opinions, tastes, and values differ. These are oall influence on how they see the good and bad in all the outcames that they are faced with. People face different situations like wealth and income or age and gender, that affect how they calculate the worth of things.
Probably because they do not have factories or refineries needed to process the raw materials.