My hubby doesnt care either. He's just not into all of the "administrative" work that comes along with managing the household. It took the first few months of me being completely frustrated with him before I realized thats what our marriage is about - us coming together to complement and complete each other with abilities that the other doesnt have. I am good at managing finances (the crunching, onlining, and paperwork!) than he is - yet he is better at controling his spending urges and peripheral saving (turning off lights, keeping water and electric down, no movies, etc) than I am!
We use to fight because I felt he didnt "care" about our marriage if he didnt get down and dirty with me in the number crunching. He could care less about knowing the "whats" and "whys" of how our bank accounts look daily (while Im a "gotta know now" freak). I use to think he *should* want to do everything I do and its unfair, blah blah blah - until I realized (and came to terms with) the fact that he is just not built to want to do the administrative side right now and by me badgering him, he will only move further away.
Now, Im quite content to manage the daily "number crunching" as long as he sticks to his guidelines he's comfortable with - he gets his weekly cash allowance for lunch / spending, thinks of new ways to save, he never puts anything on credit, etc. Since I've come to terms with this, he has come into his own also and now conciously *checks in* with me to make sure we have enough cash flow to cover all our payments... he's in charge of all utilities (phone, water, lights) so he checks in with those to let me know when the due date is so I can ensure we have the cash flow..
Also, since I am no longer an angry hound about his participation in managing our account balances and cashflow budget, he has started to ask questions and realize that there are things he needs to know how to do if something happens to me one day (i.e. oh gosh, where does this mortgage payment go to again?!) ..
I found that once MY perspective on his participation changed, everything because peaceful - and our marriage became a lot more balanced and happy.