Cosmology and Ethics
Ethics was never decoupled from cosmology since cosmology exhibits an order according to which the order of human action should be arranged, until the dawn of the Reformation. Jansenist and Calvinist doctrine severed the links between cosmology and ethics, religiously first, and scientific materialism and scientific rationalism followed.
Now when there is no external order that directs the ethical life of a person (hence no principle for virtue to be segragated), it is the "syntactic form" of a human person that becomes essential in his ethical life. This is Kantianism and deontological ethics. The present day ethics is not irrelevant to cosmology, it is "consciously" anti-cosmology. But now we seldom realize this, and it is the other way around: we become disillusioned by physical cosmology when we ponder the question of why. Why, and what's the point. It becomes, thus, with ethics. And for that "why" to be made clear, the material world is to be abandoned since there's nothing there possibly capable of giving an account of this "why", thence, logic. From logic and mathematics, both of which are immaterial and pertaining to the intellect that is active, a formal/analytic/self-evident explanation is sought after.
The problem of Kantian ethic is that it is in its core rational. Thou the architecture is there to preserve the dignitiy of human beings and human will, paradoxically no human will and passion is essential in his ethics. Detonological ethics, similar to Calvinism, preserves the dignity of human freedom by means of extinguishing what's essential to human freedom: will and passion, which was still present in Duns Scotus and Ockham.
The point is not to roll back: there is no way back. The nomos that is embodied by the world can no longer be thought of as an entity that is essentially static. And also we know too much, in that human persons are born as a consequence of the theologies of late middle ages. The way out seems to be a syzygy is between will-intellect and matter/cosmic order, in which the former takes the initiative.