How did Lu vilify Wuqi, but Wuqi was dismissed?

Some people in Lu hate Wu Qi and say, "Wu Qi is a suspicious and vicious person. When I was a child, my family was very rich, with thousands of dollars, but when I failed to travel abroad, my family business was ruined. His villagers laughed at him, so Wuqi killed more than 30 people who laughed at him and ran out of the east gate of Weiguo, saying to his mother,' I will never go back to Weiguo again unless I become an official like Qing Xiang.' So he worshipped Ceng Zi as his teacher. Soon, her mother died and Wuqi never went back. Ceng Zi looked down on him and broke off diplomatic relations with him. Wu played a role in studying the art of war and serving Lu Jun, who doubted him. Wu Qi killed his wife and sought the position of general of Lu. Lu is only a small country, but it has the reputation of defeating Qi, so the ministers will plan to destroy Lu. Besides, Lu and Wei were originally brotherly countries, and now the king is reusing Wuqi and abandoning Wei. "Lu Jun also suspected Wuqi, so he fired Wuqi.