The military has chaplains; shouldn't those who work in the nation's food chain have the same? In fact, I think having chaplains in the military is a bigger problem. Are chaplains going to pray that our bullets are successful and their bullets are not? I'm not saying chaplains don't do the Lord's work; in fact, one of my seminary professors was a chaplain in World War II, and he believed he saved some lives.
Still, the military chaplaincy raises a thornier problem for me than does a pork-plant chaplain. It seems to me that the problem is one of sacred versus profane; those who have a problem with pork-plant chaplains don't realize that "the earth is the Lord's and the fullness thereof," as one of the Psalms says.
There really is no difference between the sacred and the profane; everything belongs to God, including you and me. All work is honorable, as Martin Luther pointed out when he said a man could cobble shoes to the glory of God.