In that instance, I feel folks who are calling Peter a dick are kind of reacting like Harry instead of trying to understand where Peter was coming from. I liked the line where Harry Goblin says, "You don't give hope, Peter, you take away hope!" That kind of weird misunderstanding and false sense of persecution is the number one problem why friendships and relationships break. I just wish the movie had focused more on Harry's psyche and jaded outlook instead of wasting time on campy Rhino and Kafka. They probably didn't want to retread Harry Osborn's story arc from the Raimi films too much but Dane DeHaan was approaching the role in a completely different way than James Franco. So they might as well have made Peter, Gwen and Harry and their inter-relationships the focus of the movie.
Would have given Gwen's death and Harry's fall more pathos and poignancy.