the things to which you allude are actually an imitation of WASP culture, WASPS dont strive by doing the things they do naturally. you study music/art because it helps you be a better person, not because it (these days) might help you get into a school you should be able to get into anyway. you do service work because you believe that it is important to give back.

using this things as credentials to gain entry into schools is a late development.