There have always been human parasites. God hates injustice and the church needs to know that parasites gather around political power.
Nebuchadnezzar had been an eyewitness to several miracles, yet he remained proud and self-reliant. In this section of Daniel 4 we see that God reduced him from his throne to eating grass in the field like a wild animal. Nebuchadnezzar was taken from being arguably the most powerful man in the world to a homeless madman.