One day, someone will threaten the girls of Hokago Tea Time, only to have Nodoka lay the smackdown on them while calmly announcing "that's my bread and butter you're f<GITAH CHORD>ing with."
After all, thanks to Ritsu's utter lack of responsibility in her role as club president, Nodoka is the one who keeps track of the club's schedule and paperwork. She's also the president of the Mio Fan Club, and the president of the student council. She helps organize the Mio Fan Club benefit concert (complete with merchandising,) and that whole t-shirt stunt from episode 20.
I'm telling you, she's setting up to take over the world in an apocalypse of
metal moe. 