Knowing music theory and having a solid grasp of essential concepts on your instrument is important so as not to have limitation when trying to "speak". However, arguing these point with those more emotionally invested than technically is useless. Consider the main events in our daily lives, our relationships, and the influence we possess. For some such as myself, music is an essential part of our lives. Stated more clearly, music is not my life but rather an important facet of my life. For many, just the emotional and nostalgic grasp is enough. Lets respect that choice.