Honestly, Inglis is more like an attack dog and just lets Rani take all the glory anyway. She just wants to fight strong opponents- and even when there's a possible moral dilemma she just shrugs and stands aside. She's trying to be an almighty janitor, basically. Her reasoning was that she did the whole 'being a hero' thing in her past life- and there seems to be no remnants of her previous kingdom. So she just wants to fight strong enemies, and protect her family/Rani.
She lets Rani take most of the credit usually for that reason. A thing that helps is that Rani is also stupid OP compared to the average person so most will believe her.