The contingency connected to Conviction 2 (that order and purpose in the creation reveal a Designer) is that the nature of a thing can only benefit other things (whether a person or some other aspect of creation) if the nature of that thing is first honoured and then—wherever it is engaged with—consciously stewarded. 

We honour the nature of a thing when we acquire knowledge of it. We can claim knowledge of it when we are able to represent it as it is on an appropriate basis of thought and experience (Willard). We steward it well when our engagement of that thing leads to more harmonious dynamics inside of which it can flourish according to its kind without compromising the flourishing of other things (whether people or other created things) according to their kind. 

The chosen elimination of wolves from Yellowstone National Park is a prime example. Wolves are designed to be predators and when taken from their natural domains of predation (the Park—particularly the lowlands) everything surrounding their former inhabitation, while allowed to grow on its own, ceased in every case to flourish. The elk descended from their former highlands into the lowland watershed, where, absent the threat of violent death, they destroyed the lowland foliage. Without the presence of alder and cottonwood to stem the flow of the river, the waterways ran amok and still more vegetation and habitat were destroyed. The nature of the wolf (and accordant submission both to its place as predator and its utility in its natural habitat to everything else that exists there) was improperly stewarded. Nature was not honoured or properly taken care of by the most sentient and brilliant of earth's inhabitants: people. The same unbridled voracity with which an untended child might eat sweets to the point of illness or burn down its dwelling for ‘fun’ was allowed to consume the dynamic nature of Yellowstone. Humans improperly stewarded their calling. The garden was improperly tended. Failure to honour the nature of a thing leads to chaos.