In poor countries, this is reasonable; there is not enough wealth to spread round. But, in developed countries, concentration on economic growth is an extraordinarily inefficient way to increase general prosperity, because it means that an economy must grow by, say, 3% to raise the earnings of the majority by, say, 1%.
不能区分价值和价格会产生一个奇特但不为人注意的后果：大部分人提高收入的唯一办法是经济增长。在穷国，这在合理不过了——没有足够的财富可供分配。但是，在发达国家，经济增长的集中是极其低效的产生整体繁荣的方法，因为这意味着用（比如）3%的经济增长来提升（比如）大多数人收入的1%。