Co-worker Confections

I have noticed something from working in an office made-up of 95% women: there is always something to eat. Every alcove, every peninsula, every nook in the building has a foil-covered plate on it with some kind of cookie, pastry, pie, cake, truffle, sweet roll, or pound cake upon it. Early in the day, those in closest proximity exercise amazing will power. They say things like, "Oh, it looks amazing but I couldn't... Or "keep me away from that," and on, and on. But then as the day grows closer to lunch, little one inch dents appear. When caught, the guilty usually smile sheepishly as they confirm its goodness with gushing compliments to its maker. After lunch, the dents grow from one inch to more substantial helpings. Excuses change to justifiers like, "gotta have that sugar rush" and "one more couldn't hurt'" thereby giving those in their hearing permission to gorge on what's left. What I can't seem to understand is in the presence of daily comments of "Oh, I'm SO fat," why my co-workers keep baking and bringing the stuff in?! Do they do it vindictively? Does Barbera smile with satisfaction as she pulls her 10,000 calorie chocolate cake out of the oven certain of its pound-packing allure? Or do they do it to guarantee that no one loses weight--EVER!! I can't protest too loudly, I would rather work as a minority among women any day, especially women who bake.