You then are, if you seek continuously-higher-and-higher profit margins, cornered in such a way that you have 1 of 3 options out (see my reply to the first poster above).
The fact that more and more companies (1) are so myopic they can't see this coming and (2) openly embrace 1 of those 3 options when they're eventually forced to is how, for example, we've arrive at a world where formerly "Don't be evil" Google has morphed into "SOMEBODY is going to make some extra money becoming CyberDyne Industries, and so "Why not us?".
Not saying what you said is not part of the consideration, but imagine the world your kids will grow up in if more and more companies behaved this way.