I pictured him a lot friendlier looking.

But really, I agree that it was part of the larger failure of the PT trying to show the stuff that was mentioned in the OT. As weak as it was, ROTJ did a much better job of showing someone trying to lure someone to the dark side - that surely was enough. We didn't need to see the process again, drawn out over three films. And worse yet, "how will they keep control without the bureaucracy?" was more than sufficient in the OT for us to build a mental image... I couldn't believe it when the PT actually showed us the bureaucracy.