Why is the Artist removed from what they produce?

Why is the artist removed from what they produce? Why is a song distributed to the masses without concern as to what the songwriter had in mind when they wrote it? Why is the significance of the meaning lost when it is put out there? I understand that words should be taken literally but that certainly isn’t the case as I see it. I also understand that beauty is in the eye of the beholder, but in this day and age in music and fashionable art, why isn’t the message digested along with the art itself?