he killed hiruzen and countless innocent people for his experiments not to mention he left Jiraiya woth the guilt of his own betrayal until the guy died. he deserves it.
Sasuke was going to kill them (the Kage) while they were under the IT genjutsu. He’d gone rouge to join Orochimaru according to his own volition, killed a stand-in Hokage, attacked the other Gokage - made one lose his arm, joined the Akatsuki, attacked another village’s Jinchuriki, etc.
Kabuto literally tried to kill Tsunade in both Votes, played the BIGGEST role in the war- no matter how you slice it, was a spy and was a 2nd in command of Orochimaru’s affairs.
If the bitch was fine with the two characters above, she should be fine with Orochimaru.