Recently, I saw this ad—one of several from the Acton Institute, a conservative think tank that advocates, among other things, the use of free market economics to help fight poverty.

I respect the Acton Institute. I think they have several good ideas about fighting poverty. Some of their other ads advocate things like microloans for the poor and access to global markets for developing countries so they can trade their goods freely.

But in the case of this particular ad, there’s another perspective worth considering. What if 30 grams of fat is not, in fact, good for the world’s poor? What if the Big Mac represents the kind of consumerism that can hurt the poor by damaging their environment?

Consider this example from Matthew Sleeth’s book Serve God, Save the Planet (which I blogged about last month):

To obtain billions of hamburger patties for a few cents each, America’s fast-food restaurants buy much of their meat from Central and South American farmers. These farmers clear-cut forests, often starting a cattle-raising process that can be sustained for only a few short years. The loss of rain forests in South America means that the clouds they once made no longer blow across the Atlantic to drop their water on Africa. As a result, the Sahara grows by thousands of acres a year. What is the bottom line for Africans? More starvation. And the bottom line for Americans? Cheap burgers and growing waistlines.

South American rain forests generate the clouds that deposit rain on African farmlands. As these life-giving forests disappear, children starve.

Incidentally, those working in places like East Africa confirm that the frequency and severity of droughts has increased significantly. Unfortunately, most of the mainstream media is too obsessed with the latest drunken celebrity incarceration story to cover the plight of the rural African farmer.

Meanwhile, these farmers report more and more difficulty as their climate changes for the worse. The Sahara is pushing southward, and the rains that once fell with some measure of predictability are becoming scarce.

In a world where children starve so I can scarf down a $4.00 value meal (one that will probably shorten my life span as well), can we really argue that unbridled consumerism is good in all its forms? Adam Smith, the father of free market economics, envisioned an invisible hand—the idea that a person who is free to pursue their own economic well-being will unwittingly contribute to the common good.

But what happens when consumerism reaches epic proportions? What happens when our appetite for more stuff—including things which, like the Big Mac, have no redeeming value—grows out of control? What happens when we embrace capitalism without restraint, without accountability, and without responsibility for those who are impacted by the choices we make?

Is it possible that we’ve bound the invisible hand? That the connection between self-interest and the common good has been broken by our unrestrained (and unrecognized) greed?

Is it possible that our choice of what and where to eat is really a choice of whether or not we will love our neighbors (including those who live on the other side of the planet)?

It may be that fast food is not only hazardous to our health. It may be that our addiction to fast food is hazardous to Africa’s health.