Art for Art's sake or Art for Life's sake or Both

I think we should follow both the thing. As both are like T scale and set square one without other is useless. If a architect is adopting Art for Art's sake in the beginning of his career he won’t get any project or if he is adopting Art for Life's sake he wont be famous. So I think that during the earlier days of our career we should give more preference to Art for Life's sake and vice versa. The above statement is to be followed when u want to become as a famous architect. But for a good architect function is the primary objective.