I hold a BSN and have been employed within this specialty for 14+ years. One would also need at minimum a BSN to sit for the NI certification. Depending on your geographical market and where you want your career to progress to , an advance degree might make you both more marketable and increase your chances of advancement into a leadership position.
Not quite sure what you mean related to "being a desk jockey" and "doing something that has no impact" Perhaps you need to learn about the roles within and the speciality of nursing informatics?
Quote from flossfarmer
I'm working on my BSN right now and was wondering about the opportunities within informatics available to a RN with only a BSN. Is there meaningful employment for me or should I get a MSN. I don't really want to be a desk jockey for the rest of my life doing something that has no impact.