I think different therapists are good at modeling different things. I think my T is good at displaying all of the qualities you listed, including flexibility and a willingness to change. However, I don't think all clients need those behaviors demonstrated or view their Ts as role models. I think if I were looking for a role model, my T would be a great one. However, I don't feel that is something I need from therapy. I need my T to listen and be supportive, but I don't need her to demonstrate or model certain qualities. I think it's all about what the particular client needs and whether the T they have chosen is able to offer those things.