Appeasements of dalits who boycotted the movement

After Team Anna ended the present movement on 28th August, a salute by Shri Arvind Kejriwal to Ambedkar and his constitution was very disheartening. And choosing a dalit girl for offering coconut water and honey to Anna ji was also of a bad taste. Today dalits like this generosity by upper class who clean the place which will be occupied by the dalits. Dalits were not participating in the movement then why a dalit was chosen for this holy cause? Why not a child of one of the active members of this movement?