The fact that there are terrible dictators does not invalidate the point that there are non-terrible dictators. I think the GP's point was that even with "good

The fact that there are terrible dictators does not invalidate the point that there are non-terrible dictators. I think the GP's point was that even with "good" dictators, the problems come up when succession needs to happen, which is why "dictatorships" don't scale. Democracy has a built-in mechanism to stop any bad thing from happening in a change of government, while ensuring that change happens often (at least in a good one).