On average, money is a measure of added value. But plenty of people extract cash without creating value. Thieves, for example. Corporate raiders. Many speculators in the financial market. People running protection rackets. People running MLM schemes.

The classic medieval example is a bandit or a warlord who take over a section of road and extracts tolls. He didn't build the road, but he can extract plenty of money as long as he controls it.