"Wealth is only produced when people work." does not imply every kind of work creates wealth at the same rate. I think the point was merely that creating money

"Wealth is only produced when people work." does not imply every kind of work creates wealth at the same rate. I think the point was merely that creating money out of thin air without anything corresponding changing in the real world does not cause there to be more of what people actually want there to be more of.