Rap probably has a higher incidence of novelty hits than any other pop music. The earliest rap hit, The Sugarhill Gang's "Rapper's Delight", is pure novelty. And some of the biggest hits of the form were comedic takes ("Parents Just Don't Understand" "The Humpty Dance" and, oh let's go with "Stronger").
We could debate whether these clowns of the mic cheapen the medium for MCs with more serious rhymes, but anyone who feels that way isn't going to be dissuaded by anything written here. And plenty of high-minded, well-intentioned rappers commit accidental comedy simply by taking their work far too seriously. [The same goes for movie stars who call acting "their craft" and rock stars who think what they do is important.]
With that, take this:
How many DJs and hip-hop producers would be brave enough to admit that the sample of classical music in this single broadened their view of what qualifies as a break?