I think Ming Yingzong gave Wang Zhenbei several reasons:

First of all, because Ming Yingzong knew the great eunuch Wang Zhen before he established the king of a country.

Because Wang Zhenyi served Ming Yingzong, they had a very good relationship, and Ming Yingzong especially trusted Wang Zhen.

Second, it is because Xuan Di is used to using officials.

As early as when Xuan Di was a national leader, Wang Zhen had been used, because Wang Zhen, a great eunuch, had the ability to see everything. Ming Chengzu guessed this close relationship, so Xuan Di sent a good man he thought to see Ming Chengzu. I think this is another kind of support!

In Xuan Di's time, eunuchs could read and hold power. At that time, Wang Zhen was appointed as a senior official by Xuan Di. These were kept in mind by Ming Yingzong, so he proclaimed himself the emperor and had the reason to continue to reuse eunuchs.

I think the above two points are enough to prove why Ming Chengzu erected a monument to such a big eunuch, because in his heart the eunuch was a good man, and he probably thought Wang Zhen was a hero!

However, the eyes of future generations are discerning. In the Qing Dynasty, everything in Wang Zhen was overthrown. Although the stone tablet has not been overthrown, the words on it have been obliterated. Everything Wang Zhen did was because he didn't want to be a small official. He would rather climb from the palace to the highest position. Such ambitious people just can't get much power. They are the kind of people who make bigger mistakes with greater strength because of endless desires.

I don't think I have wronged Wang Zhen in history. He did a lot of bad things for his own selfish desires, and what he did deserves our vigilance.