system
Given the following post, respond as if you're commenting on Reddit:
human
[Dragon Ball Z] So what would've happened if Vegeta hadn't killed Nappa?

Could he have adapted to Earth culture.... or at least as much as Vegeta did?  Would Frieza have been an easier fight if they had 4 Saiyans fighting instead of 3?  
Would Ghost Nappa have become so popular?!?!?
gpt
Nappa was raised in the Saiyan Culture far longer than either Goku or Vegeta. Vegeta himself said he only knew violence and destruction. Odds are he would have rejoined Frieza's army instead of turning on him because he simply didn't care.

Goku and Vegeta both spent a massive portion of their life on earth. They made friends, fell in love, and had a proud fighting spirit none could rival. They also had a deep hatred of Frieza and the emotion and pure hearts to go Super.