Ladvioka, Lord of Putrefaction, was one of the oldest Demon Lords and one of the most powerful existences in the Chaos Faction—no—in the entire universe. Throughout the many generations, he had steadfastly carried out the demons' most basic tasks of conquering and slaughtering more times than he could count.
As a top-level existence in the demon food chain, he rarely got chances to personally take action. Unless the Dimensional Will was blind, it would reject the arrival of a mega-dangerous existence like the Lord of Putrefaction. And any time he did get to personally take action, the demons' conquest of that Plane would only ever result in complete and utter destruction. The demons' slaughter of that plane's residents would become the extinction of all species and lifeforms in that plane.