MauryanBroski Everyone who gives in their resume and goes through with the interview is going to yap on about their academic achievements, but the truth is that that is all that most people are going to talk about.
I think you only need one superior to get to the interview, and the interview is the most important part. you need something to stand out from everyone else, and extracurriculars will give you that.
it's important to study and have some academic achievements under your belt, but yea neglecting extracurriculars is definitely not a good idea.