Irony.
Akatsuki were actively doing missions for a cheaper price than the other villages. Itachi is not exempt from these missions, especially if he's trying to maintain his cover.
Itachi doesn't kill needlessly, no. However, he does kill; he was even made captain of the Anbu... Konoha's team of elite assassins. Itachi does kill. Being a ninja, he has to.
That's what we know they did individually, but we're also told that they did missions which would require them to kill. They also killed Jinchuuriki, and would also kill anyone in their way.
In regards to your next paragraph, let me reiterate; Akatsuki was a group of ninjas which did work as ninjas for less than what other villages were charging. Onoki admitted that he used Akatsuki a lot in secret, and that they were cheap and got results.
Itachi was actually assigned to capture Gaara and tried to grab him during the Chuunin exams. However, when Itachi and Kisame got there, the exams ended early (because of Orochimaru's attack) and Gaara had already left. So, Itachi convinced Kisame to help him grab Naruto instead. If not for Jiraiya's arrival, Naruto would have been dragged back to Akatsuki by Kisame with nor arms or legs.
Also, Itachi broke Sasuke's arm and ribs, choked him, told him that he was weak and to kill Naruto to get stronger (MS), and then mindraped him into a drooling mess helplessly watching his family get murdered over and over again for what seemed like days.
Itachi did nothing to stop or hinder Akatsuki, and the war is going on right now with Obito/Madara having all the Bijuu in part thanks to Itachi's contributions.
Itachi did help Kisame capture Roushi. Notice Kisame said "you didn't fight him directly." Notice anything? If Itachi didn't help, then Kisame would had said "you didn't fight him." But, he didn't, he said "directly."
All the info Konoha had about Akatsuki came from Jiraiya, and even then it was 10 years after Itachi joined Akatsuki. Itachi did nothing to stop Akatsuki from getting Naruto, in fact Akatsuki had to save Naruto for last anyway as to not upset the balance.
If it was Itachi, it would had been really nice to tell everyone that the group was led by "Madara" (which was enough to get all the villages to work together) and that it's members included someone with the Rinnegan, and also who all of the other members were along with information about their abilities. Instead of everyone finding out the hard way, like Asuma and Jiraiya did.
And lastly, Itachi is NOT the reason Obito didn't attack Konoha; that was a sham deal. Itachi thought that the masked man was Madara whom wanted revenge against Konoha and made that deal under the pretense that Obito was Madara. HOWEVER, Obito did not give a shit about Konoha, he only cared about the Moon's Eye plan. Hell, even after Itachi's death, Obito still didn't give a shit about Konoha and kept working towards his endgame.
What would Itachi had done to stop Obito, anyway? Kill him? If Itachi were capable of doing that and saving Konoha and Sasuke from the very beginning, he would have.
You are in great denial about Itachi.
Your denial about Itachi is so astounding. Your hate blinds you too much lol.
Yes, the Akatsuki used to do that for villages. However, that was long before Obito took control and even longer before Itachi joined.
The Anbu are merely an organization that completes missions directly under the hokage. It never stated that they were an elite assassination team. However, obviously Itachi has killed people on missions, just as Kakashi and Naruto have on missions that Tsunade sent them on.
More fanfic in order to put down a character you hate, huh? Itachi was stated to be the one to capture Naruto. That was his only mission, and he purposely didn't complete it.
Once again, yes Onoki did state that. But that was years before Itachi joined.
No, he was assigned to capture Naruto. Deidara was the one assigned to capture Gaara and did later on in pt2. Itachi was just there to make sure that Danzo heard of his presence and didn't hurt Sasuke. He used Naruto as an excuse so the Akatsuki wouldn't suspect anything. The only reason Jiraiya didn't die back then is because Itachi wasn't for the Akatsuki and actually supported Konoha. Itachi is the reason that Konoha and Naruto were safe for 7 years.
Yes, Itachi did do that to Sasuke which in turn led him to grow even stronger and protected Konoha from Sasuke's hatred which was directed towards Itachi.
Hiruzen and the manga disagree with you on that. Because of Itachi, Obito didn't take over the world sooner.
No, Itachi didn't help. In the manga Kisame stated "You're lucky you didn't have to fight him yourself". Prior to the fight, Kisame asked for help but Itachi refused, we were even shown this in the manga. Itachi couldn't just kill Kisame and save Son Goku because Zetsu would alert the other Akatsuki and Itachi would be killed by them. He did a good thing by not blowing his cover and being a double spy, it was his best bet and it worked.
Hiruzen once again disagrees with you, considering that he stated that Itachi was a good double spy. He obviously shared some info w/ him prior to the hokage dying. However, after Hiruzen died there was no one left to share info with considering that he was the only one that knew the truth bar the elders. And the elders were not on good terms with Tsunade, so giving them info wouldn't have helped. By the way, Itachi joined Akatsuki when he was 14 and died at the age of 21. That's 7 years lol.
Obito flat out stated that Itachi is the only reason that he couldn't continue his plans for 7 years. Sorry, but you cannot deny manga facts, now can you? U_U