Because what if your food and your outfit clashed? What then? Why, you would starve! Oh, but if all the food is perfectly coordinated, then you might eat everything and be a glutton.
Wait, what am I thinking? This is about style and there's no such thing as too much style! Whoever heard of a style glutton? And anyways, food is life. Eat it all, I say!
Eat. It. All.