Most pop stars are manufactured in the beginning. I think Beyonce had the benefit of being in a band that was able to find it's identity long before it found its success which kept her from being shaped and marketed the way most pop stars are. By the time she went solo her label trusted her and she's been able to do whatever she wanted since.
I can't believe anyone thinks Britney is still manufactured either.
She's been around for nearly two decades. She has final say.