Yes, he did kill his clan(calculated decision) which Naruto would have refused and found another way or tried at least.
But, he released edo tensei. saving possibly a LOT of ninjas.
Now it's pretty much obito and madara vs everyone
(still can't figure out what orochimaru is up to)
but yeah I think Itachi has redeemed himself so he shouldn't beat himself up too much in the afterlife