By David Brooks, Op-Ed Columnist

If you attend a certain sort of conference, hang out at a certain sort of coffee shop or visit a certain sort of university, you’ve probably run into some of these wonderful young people who are doing good. Typically, they’ve spent a year studying abroad. They’ve traveled in the poorer regions of the world. Now they have devoted themselves to a purpose larger than self.

Often they are bursting with enthusiasm for some social entrepreneurship project: making a cheap water-purification system, starting a company that will empower Rwandan women by selling their crafts in boutiques around the world.

These people are refreshingly uncynical. Their hip service ethos is setting the moral tone for the age. Idealistic and uplifting, their worldview is spread by enlightened advertising campaigns, from Bennetton years ago to everything Apple has ever done.

It’s hard not to feel inspired by all these idealists, but their service religion does have some shortcomings. In the first place, many of these social entrepreneurs think they can evade politics. They have little faith in the political process and believe that real change happens on the ground beneath it.

That’s a delusion. You can cram all the nongovernmental organizations you want into a country, but if there is no rule of law and if the ruling class is predatory then your achievements won’t add up to much.

Furthermore, important issues always spark disagreement. Unless there is a healthy political process to resolve disputes, the ensuing hatred and conflict will destroy everything the altruists are trying to build.

There’s little social progress without political progress. Unfortunately, many of today’s young activists are really good at thinking locally and globally, but not as good at thinking nationally and regionally.

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