It's about finding the right balance. If members of society weren't accountable at all to the rest of society, we would have absolute anarchy. If we had perfect compliance, we would have a totalitarian state. Schneier makes this point very well in his book - it's good that society can force cooperation most of the time, but it's also good that it's not able to force cooperation from everyone, all the time.

Reputation is a powerful (and rather dangerous) tool and software-assisted reputation calculation is something that's going to exist and can't be un-invented. Therefore, I think it would be best if that tool were accessible to all sides of society so it isn't exclusively applied by the powerful against the weak. I don't mean to imply that any use of reputation systems by the powerful is bad and any use by the less-powerful is inherently good, I just think that abuse is less likely if those wielding the tool are fully aware that the same tool can and will be used against them if they get enough people mad.