Making a profit and maximizing a profit are substantially different things. More often than not, maximizing profit in the short term generally means the company is turned into what we used to call a milk cow. You under-invest in the root items that make your company viable in the long term, and over-pay shareholders and company executives.
If you ask many American company CEO's, "Who do report to?", they will respond; "The shareholders". I'd prefer the company CEO place the customer on equal emphasis as the shareholder. If it isn't, design "improvements" such as plans to monopolizing the maintenance of your tractor and designed obsolescence might become the primary focus for development.
Unfortunately, John Deere these days rely on the rock solid reputation created by their incredibly well made old tractors to sustain sales of their newer equipment. To date that has been working fairly well, but I wouldn't count on that working forever.