Follow the light... To a snack

What is the set of logic that leads to a fridge/freezer combo where the fridge has a light but the freezer doesn't?

And really what is the point of the fridge light at all? Is a universal feature of fridges there just to help people while midnight snacking? Do you think people would snack less at night if fridges didn't come with lights any more? Is the solution to obesity that simple? Or would people just figure out that they can turn on the kitchen lights?

And you know those pig dolls people in movies have in their fridge that they ignore as they pull out arm fulls of food - wouldn't a better deterrent be to get rid of the fridge light?

PS Both this and the last post were written on my iPhone. Which might explain the slightly shorter than usual ramblings.