[AstralStorm]

Per se, land is not productive as neither is any capital good. What is productive is people utilizing that capital good - and the rate of converting the capital good into money is actual labor efficiency. Many capital goods have total capital efficiency close to 1 but exceeding it. (e.g. homes)

Factories producing a lot of income have capital efficiencies much higher than that.

Consumer goods do not have any kind of capital efficiency. This means that typically their total economic efficiency is lower, sometimes much lower, than 1.

(note that certain goods can be considered both capital and consumer, e.g. cars - it depends on use)