I think it does us all a disservice to say that dispute resolution isn't part of Wikipedia administration. It's part of the editing skills expected of an editor on Wikipedia. Skill in resolving disputes is unevenly distributed but a good editor is one who can handle himself--and other people--well in a dispute, and a bad editor is one whose skills of persuasion are inadequate to support his actions. An administrator has to make tough decisions, for which he must possess the mental agility to prepare himself, the consequences of which will test his resilience and responsiveness daily.
An administrator who can't hack dispute resolution is about as much use as a chocolate teapot