Let’s take a small scenario. What if I promised you that if you spent 8 hours a day promoting Billy’s Shoes, and I’d pay you a commission for all the shoe sales you sent me? If you did the promoting and I paid the commission in a timely manner, we would theoretically be good partners.
Now what if I also owned Billy’s Auctions, Billy’s Games and a dozen other companies – and as soon as you sent me your hard earned shoe visitor, I’d try to steer them to my other sites instead; earning myself money and not having to pay you a commission. That could hardly be called a “partnership”.