In Dragon Ball, the one who accompanied the main plot to the end was Vegeta, not Sun Wukong's brother, Latiz. What was the reason?

There were a few reasons why Vegeta was the one who accompanied the main plot to the end of Dragon Ball and not Sun Wukong's brother, Latiz. First of all, Vegeta was better than Raditz. Throughout the story, Vegeta showed his strength and wisdom, while Radeze was relatively mediocre. In the final battle, Vegeta and Ratize had a fierce battle. Vegeta's performance left a deep impression on the audience, so he became the villain who accompanied the main plot to the end. Secondly, Vegeta and Sun Wukong had a closer relationship. In the whole story, Sun Wukong and Ratize's relationship was relatively cold, while Vegeta and Sun Wukong's relationship was more intimate. Vegeta often fought with Sun Wukong and showed more concern and support for Sun Wukong. Therefore, Vegeta became an important partner and supporter of Sun Wukong, which was one of the reasons why he could accompany the main plot to the end. In the end, Vegeta's character image was even more vivid. In the whole story, the character image of Latiz is relatively flat. His character characteristics and background story are not well described. In contrast, Vegeta's character image was more distinct. He had a strong sense of justice and a desire for self-realization. He had experienced many difficulties and challenges. These characteristics made him a more representative character, which was one of the reasons why he could accompany the main plot to the end.