As a corporation becomes bigger, it becomes a target. If they don't have a lobby team in Washington, they will just be pounded on by other political factors (in

As a corporation becomes bigger, it becomes a target. If they don't have a lobby team in Washington, they will just be pounded on by other political factors (including other corporations) until they do. See the case of Microsoft, which until the (in)famous DoJ investigation had no lobby team. Afterwards, donations started streaming and their lawyers set up offices in Washington.