Just about every large corporation uses outside contractors to supply them with parts or services.  For example, Ford Motor Co., Fiat-Chrysler, Bethesda Softworks, Comcast Cable.   How many motion pictures have you seen that were made by the company that released it?  Also, no one is being forced to work for what Bethsoft will offer.  If a person doesn't like the terms of their contract, they would not have to accept it.  A hard and fast rule of a successful business it to get the product as cheaply as possible and sell for the highest price possible.  That is how a free economy works. This ^^^