The capitalist culture especially in hollywood has shaped the mind of the teenager to seek fame and wealth by film or music. Rebecca is one such example, an attempt to 'make it' through a pop song, decadence defined.
The success of this piece of "music" is, in my opinion, the result of a decline in music literacy and an over reliance on technology for personal stimulation and interaction. I suspect that most people would recognize this song over a Mahler symphony, or even a Bach solo keyboard work or Mozart symphony. It is a pretty easy argument to make that music literacy has declined drastically amongst the masses in a dramatic way over the last 30 years. As a professional classical music, I try to have empathy for such people as to what they are missing out on. It is the difference between living in the confines of a small soap dish and traveling free amongst the stars.
It is a by-product of a "bread and circuses" society, which America has a bit of.