I think what people are forgetting is that Jessica and Cody, while they are the victims, aren't exactly great heroes right now tbh. They lack confidence and tact and I think they're sort of the forewarning to people that Paul, the villain of the season (or should be), is running everything. This will lead to the seasons actual heroes, hopefully Jason or Kevin, taking him out later on. So no, a hero hasn't been established yet because Jody aren't easy to root for tbh, even if they aren't the victims.
So everyone, be patient, and our heroes will come and we will actually want to root for them.