If "Vegeta Got a Spin Off" IT would better than DB Super and Kai, but people wouldn't emphasize with him if he's not tormented, outranked, and struggling. It would be good for Vegeta, but bad for everyone but Bulma. Vegeta can't be Barack Obama without a LOTTA people throwing poopypants hissy fits, 900,000,000,000,000,000 TIMES OVER AND OVER AGAIN. According to Murphy's Law, It might be more disruptive than the hackerbully melodrama "screaming at uncle" bullshit that's going down now happening now.
Even I know this, and I AM VEGETA!