This is a great way to put it. The company doesn't pay programmers to build software, they pay programmers to fulfill business needs.. and if they found a 'programmer' that could do it even faster with an army of trained pigeons they'd be completely satisfied with that. I think a lot of software developers miss the forest for the trees.
You have a choice at this point, either make a stink, or calmly (and in email), share your concerns with your direct supervisor.
At this point I wouldn't even write the email. It sounds like there have already been far too many conversations on the topic, the only good step left is to just drop it completely, other than maybe a "I was thinking about it and I realized you were right" conversation.