Speaking of the ultimate winner of the Romance of the Three Kingdoms, we have to mention the Sima Yi family. Many people felt sorry for Cao Cao, and the inheritance for which they had struggled all their lives was taken away by Sima Yi. During Cao Cao's lifetime, he had many generals under his command. Even when Sima Yi was fighting Cao, his old subordinates were still there. Why did they turn a blind eye to Sima Yi's usurpation? If these old subordinates participated in the battle, sima Sima Yi would not be able to claim the title of emperor.

At the time of Sima Yi's coup d'état, although Cao Cao had been dead for 29 years, there were still many of Cao Cao's old subordinates left behind in the army, although the number was small, but there were still many people at that time, such as Wang Guan, Wang Ling, Guo Huai and others, but why did these people see cao Cao's Jiangshan being occupied by Sima Yi? What are the interests? There are two powerful things in the middle, you may wish to take a look.
1. Not reusable.
At that time, before the change of Gaopingling, and these old subordinates of Cao Cao were not valued because they were old ministers, when Cao Shuang was in power, only his own relatives were reused, and these old ministers had gradually come down from the court, making these ministers very dissatisfied with Cao Shuang, which gave Sima Yan the opportunity, although sima Yi did not have military power in his hands at that time, the military power was still in the hands of Cao Cao's old subordinates, after Sima Yi launched a coup, Jiang Ji went to Sima Yi as a lobbyist and wrote to Cao Shuang to let him surrender. This led to the instant collapse of the Cao regime.
2. Turkish interests. During the period when Cao Cao was in power, Cao Cao attached great importance to the Hanmen students, promoted many Hanmen students to become officials, and formed a new force in the imperial court, which made the original forces suffer, when Cao Wei was in power, Cao Cao's original subordinates belonged to the vulnerable groups in the imperial court, and there was no right to speak at all, and Sima Yi just happened to be the representative of these people, and when Sima Yi put forward, these old subordinates naturally did not stand up to help the Cao family.
In the life of the scholars during the Jin Dynasty, it can be seen that their lives are very free, and the family power is also very strong, all the consequences of this are caused by their compromise, when Cao Cao was in charge of the "meritocracy" policy, it was completely extraordinary, and the cold students could not get ahead.
As a result, when Sima Yi usurped the throne, no one was willing to send troops to help the Cao clique, and these people either stood with Sima Yi or were indifferent to this matter, while Cao Shuang and Cao Fang were completely abandoned