$10B is less than a tenth of Nestle's annual revenue, just to lay out the scope of the food industry. If they were public, it would be a cheap deal for them.
A quarter of the world's population are Muslims or Jews, who would probably appreciate the flavor of bacon without actually eating pigs.
At least another 15% of the world are vegetarian/vegan or aspire to be.
There's also the environmental and ethical impact of livestock and the livestock industry.