Everyone is happy when they are rich. Without the previous haggle over every ounce, you won't be angry with others casually?

Congratulations, you have reached a new level in your mind. As you said, the higher the level, the less you will haggle over every ounce (most of them, not excluding a few, are still chattering, which is a quality problem), because in the eyes of the rich, those things are trivial and not worth caring about. On the other hand, the more people who have no money, the more cautious they must live, and because no money will produce many negative emotions, especially in today's society.

Among the people I contact, it is common that the richer people are, the more tolerant and kind they are, and the poorer people, especially the middle class, are more concerned about gains and losses, because they are afraid of gains and losses. "I don't have it", "I may not have it" and "I should have it, but it is impossible in reality".

Of course, this does not mean that the poor are unkind. Most people in China are simple, but living without money makes people feel anxious, regretful, jealous and so on. China has a poisoned chicken soup, "Money is not everything, but you can't do anything without money". Before entering the society, you only paid attention to the first half of the sentence, thinking that money stinks. After entering the society, you found out that the second half is actually more important.