Maybe you could clarify what "career driven" means to you because I'm thinking it means something different to me...
When I said Lois doesn't care about her career I wasn't saying she hates her career or doesn't appreciate recognition if it does come her way. What I meant is that it isn't of ultimate importance for her... it isn't an end in itself.
A lot of times when people (particularly feminists) use the phrase "career driven" its all about someone increasing their social status, way of life, and prestige as an end in itself. Sometimes this is a sort of "break the glass ceiling" thing where a career-driven woman proves she can hold the same positions of authority that men traditionally held. That is, the career is the drive in career-driven. This is often lauded as a virtue, but I don't think it really is one, for women or for men.
I find it better for someone in a career to love their career because of what they do in the career, which in Lois' case is revealing the truth, writing good news stories, and fighting corruption. She's driven to do those things. Its not "oh I have a career so I'll be career driven and garner prestige and power and social standing." Lois doesn't really seem to care about those aspects of her career. What she cares about are the passions and beliefs and gifts that drove her to that career in the first place.
That doesn't mean she hates getting accolades or good social standing or recognition. She's thrilled when those things happen. But in the end she always proves willing to sacrifice those things for her passions and beliefs. Those things don't drive her in and of themselves... they are just icing on the cake.