Board Thread:Naruto Discussions/@comment-24098614-20140411233703/@comment-3306440-20140416133008

Sasuke had no one to guide him ever since his clan was massacred. He had no one to share his feelings to, unlike Naruto, who had Iruka and the ramen store owner. This series is most likely trying to convey the message that not all the bad guys here are bad, hence the flashbacks.