It is Engerprise which builds and improves the world's possessions. Thrift may be the handmaid and nurse of Enterprise. But equally she may not. For the engine which drives Enterprise is not Thrift, but Profit.
In order that people may be happy in their work, these things are needed: they must be fit for it; they must not do much of it; and they must have a sense of success in it.
We are like wheat, here on earth to ripen. We ripen intellectually by letting in as much of the universe's complexity as we can. Morally we ripen by making our choices. And we ripen spiritually by opening our eyes to Creations's endless detail.