Priorities and Ethics are inseparable. For every action we take, we make a priority judgment that our chosen action is more important - a higher priority - than the alternatives we did not choose. Thus ethics, as the evaluation of free human decision-making, is all about prioritization; examining whether individuals made good or bad choices is the same thing as asking whether they kept their priorities straight.
How do we determine whether a choice is good or bad? We look for alignment. Whether at work, at home or beyond, the fact is that people don't just make decisions arbitrarily. Such whimsical behavior is simply not a part of our human "hard-wiring." Instead, to make choices persons are constantly seeking to align with a broader "end," a larger goal in life personally and/or professionally. If we want to know good and bad, then, we have to look for alignment between the means we choose and the ends we pursue.