This is about the problem in the film and television drama "Yongzheng Dynasty", because Wu Sidao is a fictional historical figure, at least he cannot be found in the "Manuscript of Qing History".

This question involves three people, Wu Sidao, Yongzheng and Nian Gengyao, but why Wu Sidao didn’t save Nian Gengyao? So we have to look at Yongzheng and Nian Gengyao first to understand.

Yongzheng, in "Yongzheng Dynasty", is mainly characterized by diligence, uprightness and strong desire for power.

In "Yongzheng Dynasty", Nian Gengyao's main characteristics are that he is talented and likes to speculate? For example, during the battle for the legitimate son, he was obviously from Yongzheng, but he wanted to get close to the Eighth Master . This shows that Nian Gengyao also had a strong desire for power.

Therefore, the main conflict between Yongzheng and Nian Gengyao was not that Nian Gengyao was too arrogant, but that Yongzheng felt that he could not control it. An example is the Thirteenth Master, who was more powerful than Nian Gengyao, but Yongzheng had no reaction. Because Yongzheng knew very well that Thirteenth Master was his loyal supporter, and he always put the interests of the imperial power first in everything he did.

But Nian Gengyao's performance was not like this. In addition, he had a large number of troops, which posed a great threat to Yongzheng. Naturally, Yongzheng would dismantle it, and Nian Gengyao's bomb would explode at some point. The thunder broke out.

Now that we understand the root cause of the conflict between Yongzheng and Nian Gengyao, let’s analyze Wu Sidao.

First of all, Wu Sidao was an intellectual and had great ambitions. However, he was disabled and could not realize his ambitions. Therefore, he was willing to make suggestions for Yongzheng. In fact, he was using Yongzheng to realize his long-cherished wish in life.

So this proves that he and Yongzheng have the same goal. He must consolidate Yongzheng's power and not allow outsiders to blaspheme. Therefore, Wu Sidao's first reason for not saving Nian Gengyao was that there was a fundamental conflict between the two, which was still irreconcilable.

Secondly, although Wu Sidao has amazing power and scheming, his foundation is Confucianism, which emphasizes benevolence and order of superiority and inferiority. Otherwise, why would Wu Sidao reject Nian Gengyao's sister's kindness? So much so that he said: You are from Yongzheng after all. The subtext is, I don’t deserve it.

Therefore, Wu Sidao was against the indiscriminate killing of innocent people and extravagance. Because this is harmful to the people's power and public sentiment. Looking at Nian Gengyao, he did a lot of both. In the early stage, because Yongzheng needed Nian Gengyao's talent, Wu Sideo also understood that he could only turn a blind eye and let Nian Gengyao fly into the sky.

But when Yongzheng decided to get rid of Nian Gengyao, it meant that he lost his value. So the second reason is: Wu Sideo originally disliked Nian Gengyao and thought he was cruel and extravagant, so why should he save him? Wu Sidao was merciful if he didn't take the opportunity to add insult to injury.

Thirdly, Wu Sidao noticed that the wind direction had changed from Yongzheng's insistence on getting rid of Nian Gengyao. That is to say, Yongzheng's killing of Nian Gengyao means that Yongzheng's status is no longer threatened by anyone. That's why he dared to attack the people around him. Otherwise, if the Ba Ye Party was still rampant, would Yongzheng dare to kill Nian Gengyao?

Wu Sidao sensed a "change in the direction of the wind" and realized that his role had also declined drastically. In the long run, it was very likely that he would not even be able to protect himself. So the third reason is: At this delicate moment, Wu Sidao needs to be wise and protect himself. How can we go against the dragon scale again and save Nian Gengyao?