Two things:
1. Sorcs can play objectively and get very little objective points in a huttball. Pulling teammates, controlling mid, bubbling people, cc'ing for balls in mid, and pushing people off ramps or into fire doesn't yield many objective points, but really helps a team.
2. I've seen Maod play objectively recently. I've seen him spend entire hypergates and novares at a pylon or defending a node.
Just sayin