Possibly not but it's fairly safe to say that in one facit of their lives they are not being themselves and you sure as hell don't want such a guy representing you on the political scene. The facit displaying the worst behaviour is the true one.
Now there is the point that if Mulcair lives such an expensive lifestyle, though that itself is a private matter, we do have to question, if his lifestyle is so expensive, he might not understand that some people can live and balance their budgets on far less money. As a result, he may pity people who earn more than enough, expecting EI etc. to be far too high, thinking that people really need that much money.
A politician living within his means might be more interested not in giving the poor more money, but rather teaching them or helping them to manage their finances, focussing instead on the truly poor.
Also, we have to wonder, for a socialist, he does seem to be living a pretty lavish lifestyle. Aren't socialists all about the rich spending less on themselves and more on others? Well, unless he's been giving too much to charity, but then will he do this with the government budget too?
Hard to say. It may or may not translate, but perhaps he shuld clarify his position on that.