Sure, cows matter to you, and chickens, and bees, but not yeast? Do you even know how many yeasts have died for your carbohydrate consumption? And they are kept in foil packets in deeply inhumane conditions, only to be dumped unceremoniously into a bowl where they have a few brief minutes of glee before they are set on fire and eaten. They have also died for your beer and your wine. And don't even get me started on the bacteria you eat--alive--in your soy yogurt.