Yes, it is a difficult problem when it is the Prime Minister because of the number of people who serve at the Prime Minister's pleasure. Even if the Prime Minister recused himself, people would know what his interest is, mostly because of the disclosure. Would they go against him? They would be in a conflict of interest when doing so because they serve at his pleasure, which means serving to please him. He's the boss in this situation; hopefully, sometime in the future we'll be able to say, “She's the boss.”
Again, the solution with investments is actual divestment: selling them. Anything less and you'll leave this situation where conflicts of interest are allowed and legalized—including the worst kind, which are financial conflicts of interest—through the decision-making process, and that's going to taint it.
As an aside, I'm very surprised that Mr. Carney has created this situation. He could have cashed out his investments and he would still have had millions. He would have been fine for the rest of his life investing in GICs and government bonds. Instead, he's created a situation where pretty much every week someone in the House can stand up and ask, “Did you participate in this decision? You have an interest in it.” Why would he want every single policy and decision he's making to be tainted by this when he could have easily removed the problem in the only effective way that it can be removed?
Again, it was recommended by a federal government task force in 1984 and in 1987 and has been ignored ever since.