You're right, there are clearly differences beyond the little bit of gold. Shame she's never gotten even one little decoration. You don't suppose she's a junior lawyer and whoever assigned her as prosecutor hoped she'd lose?Why not? Seems pretty obvious:
My assumption would be that as a lawyer she just wears her dress uniform whenever she's on duty, kind of like a present-day male lawyer will probably wear a suit all the time. She's not going on any landing parties or climbing up Jefferies tubes.