Luigi acted out of emotional response to individual trauma of a horribly cruel system, but very little will fundamentally change. The PRC punishes billionaires guilty of massive crimes, such as massive corruption. Which one does have the moral high ground, the one executing of his own volition in a manner that won't change anything, or the justice system of another country repeatedly working in favor of the people?

I'd say neither, if you start framing it in terms of morals and not material improvements for the working class you accept that Luigi didn't change anything, just did what we all want to do. I'm against the.death penalty either way but I'd rather the working class be empowered overall.