The Benefit of Big Business

Consider a large business. The larger they are, the better they will be at canvassing the globe for good, rare, impossibly unlocal products, services, ideas, employees, techniques, entrepreneurs, et cetera. Whe? Because the small business can't afford it. They are also better at employing large numbers of people and doing large things that may need to be done. Why? Because the small business can't afford it. And as far as I know, they have no other benefits over small business. Is this grounds for forbidding their existence?