I'm guessing he means helping inflate the housing bubble as a means of pumping our GDP. The UK may be one of the fastest recovering economies since the recession, but a lot of the growth is in housing. And if you don't happen to live in the south-east where the housing pressure is at its worst, you probably aren't benefiting from it at all. Hence the North/South divide in the referendum.
Nobody benefits from it except he money issuers. It's not growth it's inflation.
At least in sf, landlords do incredibly well for themselves...