he did evil things to try to protect konoha. it was sad. itachi did evil things for good reasons sasuke did bad things to avenge his family you might as well hate them too.
danzo death seem kinda sad i agree.
he a great character unfortunately you find out things about them when they die.
thats good for the show.
hopefully when Oro finally die almost for real
he'll have flashbacks about his life with Jiraiya,Tsunade,Sarutobi and their good times
in his final moments it is a LITTLE sad, but i knew he was going to die, he had it coming and he deserved it, yes he wanted peace but he used very unnecessary and negative means to try to achieve it, R.I.P. Danzo Shimura you didn't have to go out that way