Are these good things to get into university?

I really want to attend UBC and I already have 99 service hours from being a summer camp leader and then i was just a camp leader again and got 86 service hours for it. are leadership and service hours important qualities in a person to get into university? I know grades are the main part but universities also want a well balanced person right? I also do Dance and did piano as an extracurricular. thanks :)