Musicians always play to the edgy side of the spectrum just to seem cool. If you think Beyonce really believes in Satan, much less worships Satan, then you are just the sort of person who she is trying to offend, because your children will be the ones buying her albums, just to piss you off.
The churches use "Satan" to scare you into obedience, and the musicians use him to sell their songs to your rebellious kids.
Free market capitalism isn't right for America because it works better. It's right because it's free (and it works better).