Eto lang sakin, not defending Akon (I could care less hehe)...

1) You don't go to a Snoop Dogg/Akon/50Cent/Eminem concert to hear ballads and gospel.
2) If you paid to watch a gangsta-rapper's concert, it would be safe to assume you're aware and enjoy the type of music they represent, including everything that constitutes gangsta rap (***, drugs, crime, and 5-0 hating).