Sasuke betrayed Konoha, joined the person who killed the 3rd Hokage, joined Akatsuki, Killed some "good" samurai, then attacked the 5 Kage summit and to top it off, killed the person elected to be the 6th Hokage (Danzo). A true Kage would hunt him down and treat him like the criminal he is but Naruto defended him, gave him special treatment, and even treated him like a hero yet Orochimaru did the same things and he has to be watched 24/7, as matter of fact, Orochimaru had great achievments during the 2nd, 3rd and even the 4th war, and yet he is treated like a criminal but Sasuke is not. When Kurotsuchi called Naruto out on Sasuke's role in the war Naruto got pissed (in Shikamaru's novel). Naruto is willing to put Sasuke before the village, Sasuke could start the 5th war and Naruto would still protect him. I gained new respect for both Kurotsuchi and Chojuro for standing up to Naruto's hypocrisy in the novel.
Sasuke is a different person now for sure, and Naruto IMO does not deserve to be Hokage, I think Kakashi should still be Hokage.. or Naruto should step down and let Shikamaru be Hokage. Naruto is better suited for the front lines like in Shippuden and The Last. Sasuke on the other hand did get special treatment seemingly, but he also went to jail for an entire year where whenever he wasn't doing manual labor he was in a straight jacket with his eyes covered so to say he didn't get punished isn't correct. Orochimaru has surveilance on him and Kabuto was left in charge of the Orphanage that his mom ran. Now Kabuto did not seem to get punished at all for anything.. not even surveilance it seems. Naruto himself IMO is not and never was fit to be a Hokage. Kakashi or Shikamaru should be Hokage. Also I'm pretty sure all 3 of them were pardoned for everything officially, though Oro is still under Surveilance.. so whether people in series feel a certain way or can't change that.
Sasuke and Orochimaru were instrumental to ending then 4th SWW. So they wouldnt be treated the same as any criminal. Sasuke was punished and has done nothing but act in the best interests of Konoha since then and Orochimaru is basically on permenant house arrest.
I dont see why Naruto is viewed as a bad Hokage. It was under Kakashi's time in office and recommendation that Sasuke got a lighter punishment. Kakashi pawned all of his work to his subordinates and only got involved when it was a super important mission. At least Naruto does his work.
Technically, Danzo didn't go through full procedure of Hokage's election, he was yet to be approved by Jonins. So while he acted as Hokage during the summit, he was not officially one. And we perfectly knew he just took full advantage of Tsunade's incapacitation as she would never named him her successor.
Also, as already pointed out, it was Kakashi who helped Sasuke. Naruto asked for less punishment for his friend, but ultimately it was Kakashi's call. And I am far from being Sasuke's fan, I still consider him an awful character.
Sasuke did his time, a year in blindfold and straight jacket and when he wasn't wearing that he was doing manual labor. Surprised being stuck in a straight jacket and blind fold so long didn't make him go loony.