It's also a sound strategy - "grow the pie, not only your slice" is a metaphor I've heard for it. The extreme opposite is industries like arbitrage trading, which profit solely by exploiting other parties' inefficiency.
From a theoretical theory, you could say that, if managed sustainably, the economy doesn't have to be a zero-sum game.
From a theoretical theory, you could say that, if managed sustainably, the economy doesn't have to be a zero-sum game.