If anything the lack of a money maker incentive from pvp I hope will improve the attitude of the players participating in battlegrounds.
Too many from my experience are more fussed about ganking and racking up honor for their epic gems instead of the particpation.
While I understand that rated battlegrounds will cater to those who really want to play, so should the normals.
Casual or not, a battleground should be about the pvp, not cashing in.