Everyone is talking about the environmental effects, but what about the huge economic shifts that would come with the introduction of a viable meat substitute?

Everyone is talking about the environmental effects, but what about the huge economic shifts that would come with the introduction of a viable meat substitute? If the substitute is cheaper and tastier, a large chunk of the agricultural industry will disappear almost overnight. For many poor countries agriculture supports a large percentage of the workforce. And if the company that develops the meat substitute can protect their manufacturing process from being copied through patents or simply keeping it a secret, then it will become enormously rich and powerful. So you'll effectively have a transfer of wealth from poor farmers to a large US corporation on a massive scale. Is that a good thing? (And yes, I recognise that poor people will also benefit by having a cheaper source of 'meat')