We don't do this to other animals we claim to care for: an old dog that loses his youthful energy is still given a spot in the home and, if the time comes, will be put down in a more-or-less humane way. An old cow that loses her ability to produce milk is sold to whoever can make use of what's left of her body and promptly forgotten. If economic demands are the reason for this practice, then we can confirm that the amount of profit one can derive from a cow is the primary driver of interactions with her.
Words like "warp" and "profit" are a symbol of a fundamentally different way of thinking about what a "reasonable" relationship with an animal should be. However, I don't think you can accurately describe what the relationship between a dairy farmer and a cow is without such language, as owning a dairy farm is a business and making a profit is of course a primary concern. We see companies large and small externalize costs in pursuit of profit. What's so sacred about the dairy farmer that we have to tiptoe around describing the nature of their business?