Ma Chao claimed to be a descendant of the nobility. Why does Guan Yu still look down on him?

Guan Yu despised Ma Chao for three main reasons. Because Guan Yu's background is not as good as Ma Chao's, Guan Yu looked down on Ma Chao, partly because he felt that Ma Chao had no real strength and was supported by his family. In fact, Guan Yu always thought that Ma Chao was not strong enough. Without enough strength, he can get praise from others, which naturally makes him dismissive of feelings. 1 The reason is that Guan Yu hates ungrateful people. Guan Yu has always been synonymous with Chinese medicine. When he was still alive, he especially hated those who had no loyalty. Because Ma Chao betrayed his original master at that time and took the initiative to go to Liu Bei's camp, and because Ma Chao went to Liu Bei at that time, the whole family was killed. In Guan Yu's view, Ma Chao himself is disloyal and unfilial. Because of this, Guan Yu looked down on Ma Chao very much. The second reason is the dispute of interests. In fact, Guan Yu and Ma Chao have contradictions in interests, because Ma Chao was an airborne soldier of Shu Guo Group at that time, and Guan Yu had already become the representative of the military generals of Shu Guo Group. Therefore, when Ma Chao and his men defected to Liu Bei's camp, it would cause losses to Guan Yu's interests. When Ma Chao didn't go to Shu camp, Liu Bei was a well-deserved leader, besides Zhuge Liang, there was Guan Yu. If Ma Chao does well after defection, he will definitely surpass Guan Yu's ranking. This undoubtedly caused a kind of pressure to Guan Yu. The third reason is intimacy. In fact, Guan Yu has always been a person who defends his mistakes. After getting his approval, he will think of that person. Obviously, Ma Chao was not recognized by Guan Yu at that time. At that time, Guan Yu felt that Ma Chao was not one of his own, so he was bored with him. In Guan Yu's view, the first impression is often very important, but Ma Chao's first impression is not good, which lays the groundwork for testing him in the future.