In what ways do caseworkers commonly succeed and fail at their jobs? What are common talents and blind spots?

This is to create a complex, somewhat flawed but well intentioned character for a fictional play. I’m interested in understanding what caseworkers commonly know and are skilled at achieving vis a vis their clients and what (if any) blind spots or biases keep them from being successful vis a vis their clients. General impressions of caseworkers as a group are welcome as well.

One example might be someone who’s interest in saving others supersedes their ability to take adequate care of themselves.

I mean those employed in social work, not politics.