system
Given the following post, respond as if you're commenting on Reddit:
human
[Death Note] (Possible Spoilers) What are some of the wider socio-economic and political impacts of Kira's crusade against crime? How does the civillian world change during and after the bulk of Kira's killings?

Obviously, Kira's mission to eliminate all the world's heinous criminals has a major effect on global crime over time, as mentioned by many characters and all throughout the lore. And in general, we are given glimpses of how the systematic extermination of the world's criminals inspires feelings of fear, hatred, or admiration among regular people, depending on who you ask.

However, the manga, anime, and movies don't go into too much detail about how Kira's work affects the day-to-day lives of everyday people, the day-to-day work of the government officials in charge of them, or the prosperity of society's various businesses. 

**So, in what unspoken ways does general society in Kira's world differ from ours? What are the mundane differences that the lore just glosses over?**

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***For example:*** Do the world's police forces atrophy from a newfound lack of challengers? Do certain businesses prosper in the light of Kira's new world, while other's crumble? Does Kira's existence  affect the policies or priorities of political or municipal administration? Do science and technology fields prosper nowadays, now that the world is 'safer'? 

**Talk about whatever comes to mind.**
gpt
That's a very wide question asking for very narrow answers, but in all likely hood, not much would change.

We know from his worshippers, that despite his methods, Kira's plan *worked*. Some may have feared a God of Justice with no mercy, but it's no question that people felt safer.

But that doesn't translate economically. Crime still occurs. Laws still get broken. The police are still around to pull over speeders, respond to domestic issues, and fill out reports for burglaries. Kira only focused on the worst crimes. Murder, rape, torture, terrorism, assault. 

Cops might be in even more danger. Crimes of passion still occur, but with death the only outcome, criminals might fight to the death to keep their names out of the system. Hit your wife? Officer might demand you be in therapy the next day, else he tells Kira.

But none of that really effects the world economically. There aren't an important number of businesses that would be affected either way. Gambling and Prostitution are still strong, though pimps will probably die.

Kira could stop war by killing the war merchants, and any generals that call out for it. But nothing shows that Kira had done so. Maybe it was his next step, maybe not.

Socially, people would become even more exclusive. Staying in smaller gatherings, trusting others less. This would fall along normal lines; money, race, age. Eventually this would break down, after all, if that family from (somewhere else) were bad, Kira would have killed them. But it would take a good while, and constant pressure from Kira, to end that way.