There is no reason to not sell the arms and take the money.
This played out in the G&M as a series of lies, contradictions and denials by Canadian politicians that resulted in finally just changing the "strongest export controls" in the world in a sordid attempt to make the sale less repulsive.
And more importantly, Canadians heap as much praise on themselves as they did before the sale. Article writers continue to write the same holier than thou junk with the same smugness as they ever did. This sale, including the circus that led up to it, made a shambles of a whole host of supposed Canadian values that separate Canada from the rest of the world. And life goes on exactly as if the sale never happened. The monopoly on virtue held by Canada continues exactly as before.