What you are saying is completely senseless. If three gang members from a lower tier gang came to cartel and pushed me like in the video, and I happened to kill them all, it wouldn't be seen as well as killing three experienced players all from high tier gangs. Gang rep is everything in Asylum, it determines how you are viewed in-game etc.
I didn't post it to brag, I posted it because I felt it was a good clip that I could share!