This is entirely the wrong reason to do an EC. If you do things that you do not want to do, you will not do it well. Regardless of what you do, if you do it badly it will not help you get into a top university.
From all of the clubs that you participate in, drop the ones that you do not like. For the others, think about how you can make the club better. However, not better for you, better for everyone else.
Leadership is not about getting your way. Leadership is about helping other people.