Consistency is the value of treating similar situations similarly, and it lies at the heart of the commitment to justice.
In ethics consultation we especially value consistency in part because it demonstrates that the recommendations are not arbitrary but are coherent with reasoning applied and presumably endorsed in other relevantly similar situations.
In ethics consultation we are especially concerned with consistency of values and principles applied or with the consistency of interpretation of a particular value, even as facts in particular cases might result in different outcomes.
We see the same commitment to consistency in the legal tradition of following precedents.