It doesn't, but I think that's the point - you can do stuff that doesn't scale when you're small and not worry about how to do it at scale until it becomes a problem.
Another way of looking at it: giant existing corporations can't do things that don't scale. If you're small, you can, and that's the competitive edge you stick into the market to carve out a chunk of your own.
Another way of looking at it: giant existing corporations can't do things that don't scale. If you're small, you can, and that's the competitive edge you stick into the market to carve out a chunk of your own.