Who is a historical figure you used to admire and now hate?

There is a story about Kuang Heng's "stealing light from the wall" in the primary school Chinese textbook: Kuang Heng was born in poverty and couldn't afford a book. In order to have books to read, he had to borrow books from people with books everywhere. Kuang Heng, who stole the beam to replace the column, is regarded as a model of diligent study in ancient times. When he was a child, Kuang Heng was often talked about by his teachers and elders to educate us to study hard. I admire his perseverance and hard work.

Later, Kuang Heng finally became a great scholar through his own efforts, and served as an official in North Korea because of the concept of "learning to be excellent". Because of his profound knowledge, Kuang Heng was appointed as a doctor by Liu Shi (an ancient official position) to explain Confucian classics to the emperor. At this time, Kuang Heng was still a good young man with a sense of justice. He took the opportunity of giving lectures for the emperor to persuade Liu Shi to kiss the virtuous minister and stay away from the villain.

After the death of the former Prime Minister, Kuang Heng succeeded to the throne because he was appreciated by the Emperor of the Han and Yuan Dynasties. Later, Liu also named Kuang Heng Happy Hou and sealed 3 100 hectares of land. However, due to local mistakes, 400 hectares were added, but Kuang Heng did not return the extra land after learning about it. However, a few years later, Kuang Heng's illegal land expansion was reported, and Kuang Heng was taken back as a civilian.

After knowing this, I don't like him. I don't think that a person who studies hard doesn't mean that he has a good character, and he can't think that he is a good official.