Canada's ability to effect any kind of change at the diplomatic realm internationally depends on our ability to position ourselves as deal makers and "honest brokers" and until the Conservatives were elected that is exactly the strategy Canada took. The Conservatives approach, by contrast, emphasizes "principled" stances. On the face of it is appears as if the Conservatives have chosen to sacrifice Canada's ability to achieve much of anything in the world of international affairs so as to score points domestically.
However, things are a lot worse than that. The recent UN vote and UAE fiasco are evidence that diplomatically we are flying blind. Our official lines of communication and our back channels are so weak relatively minor disagreements are breaking out into the open and catching us completely unawareness and we do not have a any kind of grasp as how little influence with have in world. Complaints about "secret votes' are just a fig leaf meant to cover up the government's incompetence.