I like Ben, and do think he is trying. He certainly cares a lot about Ciara, and seems to understand people not trusting or believing he is not a threat. However, I don't blame anyone for being leery, but do agree, that Days needs to do more, in his case, than make it so easy, as they did with Abby, and seem to be going to do with Claire.
But then nearly all Salemites get away with crime. Heck, Hope murdered Stefano, Abby killed Andre, Nicole supposedly killed Deimos, Aiden tried to kill Hope, only wasn't Aiden, after all, was it?
Days needs to deal with the situation, not ignore it. If they found a way for others to get away with dastardly things, (and not even bringing up Kate, Kristen, Sami, Victor, Stefano, Stefan, & the list goes on........then they can find a way to absolve Ben.