I don't understand. A decent percentage of US mortgages were issued to collapse (mortage below rent, low tease rate, big balloon or exhorbitant interest rately shortly after). Canada reasonably (imo) tests your income vs the loan and accounts for higher future rates.Sorry but "too big to fail" didn't really work out that good last time.
One our directors bought property in Florida when things tanked in '08. It was a rich hood where executives flew home for the weekend. After the recession they had to expand the airport because these guys started buying bigger jets. True story.
As for the second paragraph, isn't that just the rich got richer in a time of crisis? That always happens.