Lyric discussion by ThemWonkyBuzzards 

Cover art for Scumbag Blues lyrics by Them Crooked Vultures

The title of this song is Scumbag Blues, not just Scumbag.

"You may think me altruistic..." - Whoever is speaking is really a scumbag, but when people meet him/her, they're all nice and friendly and ready to give them what they want, but really they're only interested in themselves. The scumbag is controlling them and manipulating them into doing what they want.