Politeness is a measure of wealth. If people treat you well, you tend to treat others well. If people treat you badly, you tend to treat others badly.
People aggregate around what is familiar and comfortable. So people who treat each other badly find each other and continue the cycle of abuse. People who treat each other well find each other and continue the wealth inequality.
the conversation topic and the perspective on the world and the emotions displayed express your wealth.
topic: work stress vs vacation plans. Poor people complain about how work sucks. Rich people talk about all the opportunities they’re considering for vacation.
perspective: out of control, blame others vs in control, decision difficulty. Poor people talk about coping with problems caused by other people. Rich people talk about making decisions that affect other people.
emotions: needing validation so fixating on details vs healthy so jumping from topic to topic without emotional attachment or triggers. Poor people want to be heard and understood: they seek empathy. Rich people want their problems fixed: they seek solutions.