If you hire a landscaper to redo the landscaping of your property, is he thereby entitled to own a share of your property? How about the guy you hired to fix your water heater? Does he get a share, too? Is that natural?
What's the salient difference between hiring a worker to help your business, and thereby being entitled to a share of your business, and hiring a worker to do some work on your house, and thereby being entitled to a share of it?