I pretty much go along with it other than the restrictive "there is only one of them" usually applied to it, as it nothing exists outside our own universe within the scope of our big bang area. Know one really knows how many there could be or if the universe is in fact infinite in all directions from any one concieved point. But does'nt the recurring expanding/contacting and recycling of the big bang concept go against some of the bigger accepted laws? The perpetual machine for instance is argued against, cannot remember what this exception is named, but if the big bang is reality, then it is a giant perpetual cycle, the same amount of everything still will exist overall in one form or another.

As far as big business, they will adapt, and it is a huge market, hell, just the giving away of money to the organizations which form the base of consumer belief related to the products of these companies exceeds 70 billion (tax free) annually in the U.S. alone, then the sales of products tailored to this specific focus is way bigger.
I do wonder what you mean by protecting them, what would this protection consist of?