When building something, you destroy something else for the raw materials. Thus, before creation there must be destruction of what was there before. Most Euthanatos are strong proponents of mundane recycling efforts, reusing what was there before in order to provide raw materials for new things. Garbage should be turned into compost to grow new plants, which are then used and the remains turned back into compost again. And as the Euthanatos are fond of saying, when you deal with compost, you have to be willing to get your hands dirty.
Nature is cruel.
There is only so much room in any ecosystem, and so those parts of nature that can't fit in or survive must die and have their remains turned into compost for the plants who are stronger to feed on, and the stronger animals to feed on the plants. There are beings and objects and places that are corrupt, weak or otherwise not as they should be. The Quintessence being bound up in these things is wasted. Far better to destroy these things, free up the raw energy to the vast pool of Quintessence of the world, to be used in more positive and constructive things. For example, people on life support equipment are draining resources without returning anything.