No, not through her own productivity. At the start of her career, she had numerous song writers who were arguably exploited in that they are not getting a cut of her earnings. Even now, she doesn't play every instrument on a track. She has a whole team of producers. In concerts, she plays with a band. None of those people are making a fraction of the ludicrous money she's making for "her own product".

But beyond that, like the other commentator said, she has tons of staff of whom are exploited at a paycheck.

And beyond that, all of the merchandise she puts out employs many, many different exploited individuals to make.