What is the origin of the idiom "treat someone like dirt" and when to use it?

The idiom "treat someone like dirt" has origins rooted in the concept of soil or earth being associated with lowliness and insignificance. Throughout history, soil or dirt has symbolized something base or inferior, while humans have often been linked to higher status and worth. The idiom metaphorically likens a person to the lowly status of dirt, implying that they are being treated with extreme disrespect or disdain. It is commonly employed in discussions related to interpersonal relationships, workplace dynamics, and personal interactions, emphasizing a complete lack of respect, empathy, or consideration for another person's feelings, dignity, or worth.