As you said, USUALLY what draws people to a particular party is that they share similar ideas about policies etc...
Well, is it maybe possible that when it comes to international trade and the olympics both Harper and Emerson shared enough 'similar ideas' that it made sense for Harper to appoint Emerson to be the minister responsible for these portfolios?
Does the fact that Emerson and Martin agreed on these two portfolios mean that Emerson cannot possibly agree with Harper on them? Do you seriously think that Emerson is such a blatent crook that he would completely reverse his position on every vote just because the conservatives won the election instead of the liberals? If you really do think that, and you voted for the guy, well... I guess it's understandable that you are upset because you feel like a total moron, as well you should. If Adolph Hitler was alive and running for the liberals, would you have voted for him, because you 'vote for the party not the candidate?'.
It always amazes me how the left wing completely disregards the idea of 'the best person for the job' unless that person is a disabled black lesbian in a same sex marriage on welfare who thinks that Trotsky was the greatest political mind of all time.
Sometimes the right guy for the job actually gets the job, even if he's a white straight guy with a wife and kids who works for a living. Deal with it.
Also, suppose that a bunch of people voted for Emerson because he was wearing a black tie and the other guy was wearing a white tie. Then, after the election, Emerson put on a white tie. Would those people have a valid complaint that he wasn't representing them because he changed the colour of his tie and that was the only reason they voted for him? Just because a bunch of people voted for a guy for their own reasons and not for what he actually believed or stood for, does not mean that the guy is bound to live up to their artificial expectations of him. If Emerson had personally campaigned on a platform of wearing black ties and then changed his tie, then maybe there would be a point. Until he actually votes in a manner contrary to what he supported (or did not support) prior to the election, what justification is there in complaining?
After all, some of the liberals in the last government voted against same-sex marriage, does that mean that they should have resigned their seats because they were elected as liberals and the liberals were (as a party) in favour of it.
What possible benefit is there to proving beyond any doubt that no matter what Emerson and Harper do, that riding isn't going to vote for them, ever? Sounds like a great way to bend over and say 'give it to me'.