Huh? You are comparing a private corporation to something that is, if not quite its opposite (a co-op), some distance towards it?
The Wheat Board was until recently a Crown corporation -- its governance structure was modified to make it even closer to a co-op model (10 of 15 board members are elected by the farmer-members), although it remains responsible to the government (ie: the people of Canada, all the people of Canada).
There are fairly strict rules and principles governing the way the (partisan) government of the day may deal with Crown bodies, as, indeed, with ministries. The boards and staffs of the former or the civil servants in the latter are there specifically to inform and advise the (partisan) government of the day, presumably on behalf of the best interests of all Canadians. "Inform and advise" means research and advocate.
I'm not an expert on the politics of the CWB, but I understand that their membership, like the softwood-lumber producers, have their differences but are by no means behind this kind of coup from Ottawa. There are elections going on right now, I believe.
I haven't worked with researchers in SWC or the CWB, but I have worked with the research dep'ts of other ministries -- Immigration, eg -- which do work very like what StatsCan does, only more dedicated by field. I know that the neocons like to sneer at that kind of work, but in my experience it is exceptionally valuable and of exceptionally high quality.