For a tyrannical ruler there is high account of governability but there is no real accountability because the ruler feels that they can do whatever they want.
An aristocracy for Plato and Aristotle was considered a system in which political power was held by a restricted class - usually the wealthy and those of noble ancestry - that ruled the general interests under the law. While on the other hand, an oligarchy was a regime in which the wealthy minority used its power to exploit the impoverished minority. These types of government are still common today. It can be argued that aristocracy can be found almost everywhere in modern day society. Even here in Canada where we are a proclaimed democratic society, all that it means is that there are a group of wealthier individuals that can afford to run for office to represent their country. In either case it can be seen that in today's society only the moderately well off individuals are actually at a chance make it into office for representation. Governability usually is pretty high in aristocratic regimes, but unlike the others the aristocrats come with a price tag. That is, they can be bought. If something was to come up and they could take money and make a decision based on money then they likely would. So there is a high rate of corruption in aristocratic regime, which leads to an oligarchy. An aristocratic state is often not very accountable; aristocrats would do things to make the rich - richer and the poor - poorer. They always have money on the mind.
Totalitarian Regimes are a form of government that has just recently came into existence in the twentieth century. Totalitarian regimes are started because of the greed and the want of an individual to rule. This particular ruler is usually rules tyrannically. What this means is that the arbitrary power of this individual which is responsible to no one, and governs all alike, with a view to it's own advantage, not to that of it's subjects, and therefore against their will.