Bruce Yandle uses bootleggers and Baptists to explain what happens when a good cause collides with special interests.
When the city council bans liquor sales on Sundays, the Baptists rejoice—it's wrong to drink on the Lord's day. The bootleggers, rejoice, too. It increases the demand for their services.
The Baptists give the politicians cover for doing what the bootleggers want. No politicians says we should ban liquor sales on Sunday in order to enrich the bootleggers who support his campaign. The politician holds up one hand to heaven and talk about his devotion to morality. With the other hand, he collects campaign contributions (or bribes) from the bootleggers.
Yandle points out that virtually every well-intentioned regulation has a bunch of bootleggers along for the ride—special interests who profit from the idealism of the activists and altruists.
If that's all there was to Yandle's theory, you'd say that politics makes for strange bedfellows. But it's actually much more depressing than that. What often happens is that the public asks for regulation but inevitably doesn't pay much attention to how that regulation gets structured. Why would we? We have lives to lead. We're simply too busy. Not so with the bootleggers. They have an enormous stake in the way the legislation is structured. The devil is in the details. And a lot of the time, politicians give bootleggers the details that serve the bootleggers rather than the public
Please, please read the whole thing.