How important were the eight characters in ancient times? Why did Liu Bei marry Liu Xie's widow?

Liu Bei was the first emperor of Shu Han in the Three Kingdoms period. Although Liu Bei became famous later, Liu Bei was just a nobody at first, and he didn't sit on the throne until he was sixty years old. After Liu Bei ascended the throne, many people were surprised that Liu Bei married a widow, and this widow was Wu. Wu was originally Liu Xie's wife, but Liu Xie died after living with Wu for many years, and Wu became a widow. However, Wu was still very famous at that time, because some people once said that Wu was either rich or expensive, and Liu Xie married Wu because Wu was once said to be either rich or expensive.

Wu is human. His parents died when she was very young, and she has been living with her brother ever since. Wu's father had a good friend named, who was descended from the royal family of the Han Dynasty. However, Ada, who didn't like working in North Korea, applied for a local position because of the serious internal contradictions among the royal families in the Han Dynasty. Finally, because Ada heard that some people in Yizhou were rich and expensive, he went to Yizhou. When Wu's brother heard about Yizhou, he came to look for it, and then helped Wu let them in.

Later, when he heard that the rich man was Wu, he planned to marry Wu, but because Wu always called him uncle, he could not marry Wu, so he asked his son to marry Wu. Originally intended to let Liu Xie inherit his career, but because Liu Xie died early, he made a fortune by becoming a widow of fifty.

Later, because Wu's brother took refuge in Liu Bei, it took a long time. Some people heard that there was Wu, so some people advised Liu Bei to marry Wu. Although Liu Bei, who was old at that time, had been married, he did not go to the end and finally married Wu. Liu Bei wants to marry Wu, because he heard that Wu is a rich man, and Wu's date of birth is of great benefit to himself.