I imagine there could be employers who insist on this sort of thing screen monitoring (which sounds crazy to me) -- but the good thing about this marketplace is

I imagine there could be employers who insist on this sort of thing screen monitoring (which sounds crazy to me) -- but the good thing about this marketplace is that contractors aren't forced into any particular contracts. If they don't like the terms with one buyer, they could "vote with their dollars" and work for another.