But the wealth capture was slowed or halted when the financial crisis put the brakes on the real economy, only to be restored as the real economy started going again.

After all, labor markets are too slack at the moment for wealth capture to require putting the brakes on the real economy.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.