How about a company that figures out how to provide _very_ affordable high-quality health care to large numbers of people, so they aren't dependent on an employer for their healthcare? That would allow many more people to become free-lancers, or to work for companies too small to get good health insurance prices. Such affordable healthcare might make it possible for a million more people to work for startups.

Such a company might not be feasible in the current regulatory climate, but some people say the same about Uber.