Wow you are hopelessly ignorant. Let me guess you are young and from a well off family?
Its easy to have that mentality when you don't have to worry about the basics food, shelter, etc.
The only reason you can even have that mentality is you were born in a time and place of privilege. A privilege where you can pursue your music/art/other BS hobby.
In an economy of fierce competition and where those who pursued there worthless passions are now unemployed, I am glad I studied hard and earned a marketable skill. This skill will allow me to be a net contributor to society.
In response to French Aristocrats, "I study politics and war so my children can study commerce, agriculture, science, so that there children can study poetry, art, and music." -John Adams