The subjectivity of morality does pose dilemmas that reasonable minds can equally disagree on.
For example... If my dog and Hillary both fell through the ice of a frozen pond and I only had time to save one, despite what all my instincts told me to do, I would pull that old miserable bitch out first.
Then I would wait on the shore with her keeping her warm until the police showed up to fish out the former Secretary of State.
LOL.