This is a serious inside attempt at answering the question. You can decide how truthful this is.

Sometimes our defensiveness causes us to lose focus on the rest of the faith. Certainly, relative to broad evangelicalism, we confess things that set us apart in theology, piety, and practice and those distinctives are to be treasured. We tend to focus on one or two of these things and sometimes forget the rest of what we confess. Sometimes the jerks in our midst are obsessed with one or two doctrines while ignoring the ethical or moral teaching of the confessions. In so doing they are not actually being very confessional. Let’s say our jerks lack humility.