This pretty much sums up how I feel about any high risk activity. I ride my bicycle to work quite often. I realize when I do so I put myself in a more vulnerable position. If I were to someday be hit by a car, I wouldn't blame the driver. The moment I took my bicycle out on to a road with huge cars traveling with an unstoppable force, I accepted responsibility for any accident that could come my way. I don't get angry at cars for not being aware of me on the road. Statistically it is not in their minds to look for people on bicycles (and motorcycles), so drivers are not expecting me. No motorcyclist should ever expect a car to be overly aware of their presence simply because they are driving a dangerous vehicle.
I don't really care about all the factors involved in this particular accident. I don't care if it was a confusing intersection, if it wasn't Ben's fault, if there was low visibility. I don't feel any obligation to feel sorry for a guy who is injured in a motorcycle accident, regardless of whether he was wearing a helmet or not. On the same note, I don't expect anyone to feel sorry for me if I ever get hit by a car while I'm on my bicycle. I accepted the risk involved in my high risk activity.