Sin is Ungodly Exaggeration

Ed Welch, in When People Are Big and God Is Small, p. 100-101:

To make sin even more difficult to see, it often rides on the back of many good things. For example, work is a good thing, but sin can take it and exalt it to the point where it rules us. We become workaholics who say we are doing it for the kids, but we are really doing it for ourselves. What about financial planning? Isn't it wise to establish a nest egg for the future? This, too, is a good thing, but it can grow to ruling proportions and we forsake generosity. Most sins are ungodly exaggerations of things that are good. As a result, we can supply proof texts to justify our behavior long after it has become idolatrous.