In absolute sense, yes. But in a relative sense the portion they spend on housing is going to be much smaller than what your 'average income' person spends on housing. On top of that they probably own their properties outright whereas the average income person ends up paying interest on the bulk of the price of their home for decades.
Yes but the article is talking about the total amount of money the average American spends in their lifetime as an absolute number. If a billionaire spends 100x less of their wealth compared to the average person, they could still skew the distribution, just not by as much as if they spend even more than that.
