Why would contractors get profit sharing? They're already paid higher rates after accounting for benefits, risks, and taxes. If you undervalue yourself as a software dev contractor and bill 25-30 hours a week you can make a quarter million dollars a year gross.
I get where you're going with the WM example, and that's a fair one, but probably not comparable to a tech company like this. Nobody is going to be working for $10/hr or less unless it's fair for their standard of living. Likewise, industry level pay is important and if a good CFO commands $2 million a year but you can only offer $1.1 because you have a bunch of people making $50k, you're not going to get a good CFO, or your hiring pool is going to be artificially limited to those who don't need or care about the money.