From a blog post by Randy Alcorn:
Someone has said, “Live simply that others may simply live.” Of course, there is no automatic relationship between my simple living and someone else being rescued from starvation or reached with the gospel. There is only a relationship if I, in fact, use the resources I have freed up to feed the hungry and reach the lost. This itself assumes I will continue to make a decent wage. For if I go off and pursue simple living for simple living’s sake, spending what little I earn on myself, it does no good…