In good old legal and good old Catholic tradition, silence is not disdain, it's assent.  Pope Francis has no need to dialogue with you because he is aware not everyone's personal conscience is going to come up with the same answers.  By the way, the tradition of Catholic conscience has a very long and traditional history in Church teaching.  It just doesn't have the same emphasis in the teaching as some other concepts like rote obedience, and that can change from time to time depending on the cultural circumstances.