What does your company's reward system have to do with how 60 CAD isn't equal to 60 USD?
he's trying to tell you about opportunity cost. you don't really know who is paying more unless if you know what each person is giving up.
Here's an example for simplicity: what if movies cost $10 in both US and Canada? Games cost 60 and 75. In Canada it costs 7.5 movies instead of 6 to play the same game. In that case the Canadian gamer is clearly paying more.
basically 60 USD = 75 CAD isn't proving what you think it is, without more.