The people of Seattle recently voted to put their poorest residents out of work by increasing the minimum wage to $15 over the next seven years. But wealthier residents may soon find out just how quickly it will affect them too. A number of area restaurants are already shutting down, and many others will soon closing their doors. As Anthony Anton, president and CEO of Washington Restaurant Association, says, “It’s not a political problem; it’s a math problem.”

[Anton] estimates that mon budget breakdown among sustaining Seattle restaurants so far has been the following: 36 percent of funds are devoted to labor, 30 percent to food costs and 30 percent go to everything else (all other operational costs). The remaining 4 percent has been the profit margin, and as a result, in a $700,000 restaurant, he estimates that the average restaurateur in Seattle has been making $28,000 a year.

With the minimum wage spike, however, he says that if restaurant owners made no changes, the labor cost in quick service restaurants would rise to 42 percent and in full service restaurants to 47 percent.

“Everyone is looking at the model right now, asking how do we do math?” he says. “Every operator I’m talking to is in panic mode, trying to figure out what the new world will look like.” Regarding amount of labor, at 14 employees, a Washington restaurant already averages three fewer workers than the national restaurant average (17 employees). Anton anticipates customers will definitely be tested with new menu prices and more. “Seattle is the first city in this thing and everyone’s watching, asking how is this going to change?”

You may have the smartest lawyers on retainer, the most-connected lobbyists on your payroll, and the most powerful politicians in your pocket, but it won’t help you change the law of unintended consequences. When you muck around and make changes to plex system—such as labor pricing—you’re bound to create problems like the one’s Seattle’s restaurateurs will be facing. The law of unintended consequences always gets the final say.

If it were a matter of mere ignorance this new law might be excusable. If the supporters of the $15 minimum wage were able to honestly say, “We couldn’t have known raising the wage would put people out of work” we could let them off the hook. But they knew—or should have known—because it has been pointed out to them time and time again.

But the wealthy won’t suffer for long. What will happen is that the activists who pushed so hard for wage increases will simply leave the city. Once their favorite bars and restaurants shut down, they’ll move to another city where the cost of living isn’t inflated by absurd wage floors. The people who will be left behind to suffer the consequences will be the working poor—many of whom were priced out of their jobs.

When the wage increase is modest (around 20 percent), debates about the minimum wage remain in the realm of political debate. But when the increase is a 61 percent increase over seven years (just enough time for the businesses to flee the city), it es a moral issue. We shouldn’t stand by and let the poor suffer because the economic illiteracy of people who have “good intentions”; we have a duty to speak up on behalf of the urban poor. We should be clamoring for this minimum wage law to be repealed before the law of unintended consequences takes goes into effect. If we wait too long the only restaurants left in Seattle may be soup kitchens.