You listed every Hokage, Jiraiya and even Danzo who betrayed the village and you left out Tsunade, the one who was ready to die for it, and later for the leaders of the other great nations. Your ignorance is unbelievable.
Every shinobi is ready to die for konoha, Kakashi, Gai Asuma etc..
it's all about sacrifice I know but
these shinobis did more things for
the benefit of konoha .
Hashirama is the one who create the village and was dreaming about the peace between Uchiha and senju .
Tobirama was able to Dominate the political situation and he created many things such as the anbu, konoha's police and even created many jutsu like kage bunshins, FTG etc.. which helped konoha many times
he sacrificed his life for konoha
Hiruzen Sarutobi was the reason of the end of the 2nd shinobi war, in his era the peace was existed
he sacrificed his life for konoha
Minato Namikaze, I don't need to say anything, he stopped the kyuubi from destroying konoha and saved konoha from iwagakures ninja multiple times..
he sacrificed his life for konoha
Danzō Shimura, should I say he is the one who explain the meaning of sacrifice, and that what he said to sasuke : { Self sacrifice, that's what epitomises a shinobi. Never seeing the light of day, toiling in the shadows. That's the way of a true shinobi and not just Itachi. Countless shinobi have died the same way. This world could not function on ideals and pleasantries. It's thanks to people like him that peace has been maintained.}
and even when he was about to die
{ It's not my life I'm worried about. This is for Konoha… for the ninja world… I can't die now… I'll… do anything… to survive. I… am the only one… who can change this world… }
Danzō believed that he need to
be sure that people like itachi
who would do anything to save konoha still here, that's why he created the Root ..
and all his power was stolen just to save konoha
{ The world of the shinobi is filled with a myriad of techniques. You cannot compete with just one power. We must master various techniques and use those powers to unite the shinobi world.}
As for itachi, itachi did what Danzō told him, because he know that Danzo was right, he killed Fugaku uchiha for konoha and all his family ..
in the shinobi world your village is more important than anything ..