The whole point of the character of Pain, especially with his clash with Jiraya. Sasuke gets into it to. It's another reason why the Uchiha rebelled and Itachi needed to kill them, because the Village wouldn't listen to the Uchiha's bs. So they tried to take over the village. Had they just listened to them, then Itachi and all of the Uchiha wouldn't have rebelled. It's Mickey Mouse bs, and an oversimplification of a major idea. It takes the idea of universal peace, and boils it down to an answer that a child may give in a kindergarten class.
Most rebellions don't just happen because people "don't listen/care". They happen because of real issues that divide people into two or more conflicting factions.Take the American Civil War for example. No amount of talking was going to unite the pro and anti slavery factions in the United States. People tried, there were whole political parties and movements that tried to stop it, like the Constitutional Union party. There were events such as the Missouri Comprise, and other events that tried to bring the issue around in a peaceful way. Sometimes though issues become more important then even the idea of peace itself, and factions clash over what they believe is important. That's the history of humanity and warfare.
When peace is achieved without war, it is often done by ways of the outright internal failures of one faction. For example the USSR feel because of the ineffectiveness of planned economic systems that have no or little market forces connected with it. A nuclear war didn't happen in the end largely because one of the main factions collapsed in on itself. It had nothing to do with people "caring" more.
These ideas that he seemed to want to address with his themes... he simply did a horrible job with, and honestly came up with child like answers to complex issues. At which point he shouldn't of bothered to try to include them in his narrative. At least in my opinion.
Kishimoto essentially "solved" the problem of differing human factions, by having the forces go to war, and that war united the different factions of the Ninja world together for a generation or two, well also having nothing negative happen to the "evil" force that united said factions. Sasuke not only doesn't pay for his crimes, he gets the girl, gets a family, with not even a slap on the wrist. Madara and Obitio die mostly with the idea that they aren't villains but misunderstood "heroes", and the person who becomes the only thing close to a true villain in the end of this story, is as a character that basically represents over protective motherhood.
Hell he could have ended it by having "the world" unite against an alien invasion and his themes would have remained the same. The only difference is we wouldn't have gotten all of the Uchiha bullsh**.
I'm reminded of Percy Bysshe Shelley famous poem. One that someone should have handed Kishimoto when he first outlined these stupid ideas.
"I met a traveller from an antique land
Who said: "Two vast and trunkless legs of stone
Stand in the desert. Near them, on the sand,
Half sunk, a shattered visage lies, whose frown,
And wrinkled lip, and sneer of cold command,
Tell that its sculptor well those passions read
Which yet survive, stamped on these lifeless things,
The hand that mocked them and the heart that fed:
And on the pedestal these words appear:
'My name is Ozymandias, king of kings:
Look on my works, ye Mighty, and despair!'
Nothing beside remains. Round the decay
Of that colossal wreck, boundless and bare
The lone and level sands stretch far away."
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that's quite a mighty title and status thank you very much!
Persona 5 hype 
