It's bizarre that this was such a revelation to someone with his experience in the culinary industry. He seems genuinely aghast, though, and doesn't try to brush it off. In fact, he expresses new appreciation for vegetarians and vegans.
It would be great if someone like Ramsey would take just the step of explicitly rejecting factory farming and counseling other chefs and restaurant owners to refuse to make use of its "products" and to use meat from animals who haven't been tortured in these establishments. Not ideal, but enormously helpful.