There have been many successful businessmen in history, and three of them can be described as "rich and rivaled":
Lü Buwei: He was a big businessman in Yangzhai during the Warring States Period, and he earned a fortune by buying at a low price and selling it. Later, he met Yiren, the son of Qin, who was a hostage in Zhao State, and thought that Yiren was a "strange thing" that could bring him immeasurable wealth. So Lü Buwei helped Yiren become the king of Qinzhuang Xiang, and he also became a Xiangguo, and was named the Marquis of Wenxin, with 100,000 households in Luoyang, Henan, and 3,000 diners. However, Lü Buwei was later implicated in the rebellion of the Chang Yu group, and was deposed and exiled by Qin Shi Huang Yingzheng, and finally committed suicide.
Shen Wansan: He was a huge wealthy man in Jiangnan at the end of the Yuan Dynasty and the beginning of the Ming Dynasty, and the Shen family was very successful in agricultural reclamation, and later became a commercial capital, which was a rich country in its heyday. However, because the Shen family was too conspicuous and acted in a very high-profile manner, they were not only looked down upon by the people, but also convicted of spending a lot of money to help Zhu Yuanzhang repair the Great Wall and reward the three armies, and finally fell into the middle of the family.
Hu Xueyan: He was a red-topped merchant in the late Qing Dynasty, from a humble background, starting as a shopkeeper, he was shrewd and diligent, and was later accepted as an apprentice by his boss Yu Shopkeeper. With his own efforts, Hu Xueyan became the richest man in China at that time.