Philip Turner's Money, Sex, and Power: An Essay in Christian Social Ethics is much more nuanced than the more-popular book by Richard Foster of the same title. Sadly, it's also old enough now that it's out of print as well. There is light and darkness in each of us, and in each of our congregations. Turner takes the three primary temptations of Christian life (three temptations that finally are enshrined in the monastic reformations' vows of the third century onward) -- money, sex, and power -- and builds a Christian social ethic upon the deep foundation of trinitarian theology.
Turner's target audience is the Church. He is convinced that in ignoring these three temptations, the Church has erred in a couple of ways. First, we have failed to see the significant impact Christians can have on society around us through a witness to God in how we structure our social, economic and political lives. And second, our evangelical mission in the world is hampered by the absence of just and gracious relations within our own life together.
This is a powerful and transformative book that often goes unread by leaders and laity alike. That's something I hope to remedy by including it in my list.