Marginal utility of money.  If rich americans use oil heating up their 50 unused vacation homes and they have to slow down a bit, the statement can be true.<p>I.e. it&#x27;s not &quot;rather than building a factory, workers are making shoes for poor children,&quot; it&#x27;s &quot;rather than spend man hours making hundreds of shoes for a single rich person, make more shoes for the poor, less throw away shoes, and still end up freeing up time to make factories.&quot;<p>If that shoe example is too contrived for you, just do a google image search for &quot;shoe closet&quot;:<p><a href="http:&#x2F;&#x2F;1.bp.blogspot.com&#x2F;-nOKYKVt_gf4&#x2F;TZllEf3kD2I&#x2F;AAAAAAAADcU&#x2F;Ir35o6zXc6E&#x2F;s1600&#x2F;107.png" rel="nofollow">http:&#x2F;&#x2F;1.bp.blogspot.com&#x2F;-nOKYKVt_gf4&#x2F;TZllEf3kD2I&#x2F;AAAAAAAADc...</a>
<a href="http:&#x2F;&#x2F;www.theshoegirlblog.com&#x2F;2012&#x2F;02&#x2F;celebrity-shoe-closets&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.theshoegirlblog.com&#x2F;2012&#x2F;02&#x2F;celebrity-shoe-closet...</a>