I think more and more Americans have what C. Wright Mills called the "sociological imagination".

We pour tons of effort into punishing visceral, direct violence like a stabbing or shooting. But if white collar crime is being committed that leads to the death of hundreds of thousands of people, it's rare that anyone sees jail time. Maybe you could argue the decisions of Brian Thompson made only account for maybe 10% of why XYZ died but when you scale that out, you could easily argue this to be a form of white collar mass murder.

I think the younger generations are increasingly aware of this disparity in justice. If you find it hard to understand the celebration of violent vengeance but don't feel the same inability to understand the celebration of Jeffrey Doucet's retribution, then perhaps you are lacking the sociological imagination.