It has multiple aspects, including the denial of autonomy and subjectivity and the ideas of ownership, fungibility, and violability.
Thus this puzzle also places not only deontic conditional constructions, but the violability of obligations, at center stage.
According to Nussbaum, there are seven features are involved in the idea of objectification: instrumentality, denial of autonomy, inertness, fungibility, violability, ownership, denial of subjectivity.
Smith 1994 contains an interesting informal discussion of conflicting obligations, defeasibility, violability and contrary-to-duty conditionals.
