My Taichi coach always say that the strength of force, when striking comes not from the hands or feet but it should originate from the hips, extending to the hands or to the feet. I never really got the move quite right that first time he demonstrated the stance and the punch. I need more practice with that. Anyway, it's not just in martial arts that we need strong, flexible hips. Runners, cyclists, dancers (of course), and other disciplines and even just doing everyday chores that employ the use of the lower body need good hips as well.
