I don’t think Sami has been “redeemed by love”. She is still scheming. I don’t think the writers wanted us to take her side when she bribed Xander to “out” Nicole at her anniversary party. We were supposed to think she was being a hypocritical bitch and root for her own affair being exposed to EJ as payback. Sure, Sami hasn’t murderer 4 people like Ben, but I don’t think we are supposed to view her as a romantic heroine either.