I thought about it, isn't the author deliberately describing a group of decent people with mental and psychological problems, and deliberately made them cut off Vegito’s responsibility for U16 Bra? Therefore, U16 Bra, as a child who refuses to be responsible, has become a problem of unmanagement. This is the problem (legacy) that Vegito was forced to leave. Under the persecution of good people, U16 Bra is no longer Vegito's responsibility. But she was irresponsible and became a problem.

我左思右想，難道不是作者故意描寫一群頭腦與心理都有問題的正派，並點題他們切斷了貝­吉特對16布拉的責任？因此，16布拉，作為一個不肯負責任的孩子，卻成為了無人管教­的問題。這就是貝吉特所被迫遺留的問題(遺產)。在好人的逼迫下，16布拉不再是貝吉­特的責任了。但她自己不負責任，成為了一個問題。

I have a theory. Original Earth values doesn't fit the nature of these powerful aliens. They don't value ordinary people's lives, as half God's to the motal.DragonBall changes their ethics too. So, they are weird and some kind of unreasonable.