Exactly. Context and background. Especially when certain people get money or power it can amplify the gangster wanna-be inside them. The success doesn't change them for the better. They are what they were. No growth. All they have left in a world of former friends and peers who have grown and matured, is the gangster fantasy that lives inside themselves. Gangster doesn't mean hood. It doesn't mean the person came from a shitty high school, or neighborhood.
The video. Classic boys/boss take-down. I didn't watch the video and don't need to. The boys beat up/incapacitate the victim, and then the boss takes the last shot. When there is someone they're going to jump, everyone knows their role. The muscle softens them up and the boss does the finishing move. If one of the lower guys would have done it, the boss would have let that person know that it wasn't their role. This is talked about and known (planned) among a "gangster crew". It's strategy, and Is repeated among lots of different races and cultures. This shit isn't new.