Morality is what is observed just like all other reality, in this case human behavior. Ethics has also been placed on a scientific footing. It is known which of them many systems devised by man bring the greatest likelihood of success. Some, such as ethical egoism, are self-destructive. Some, such as the rule of Moses, an eye for an eye, bring about perpetual human conflict.
Political philosophy indicates government is most efficient with maximum individual freedom.
All that is required of any government is protection of persons and goods. The outer shell of a government, republic, democracy, monarchy or dictatorship, is unimportant. A voluntarily financed government based on the common law of judges and juries is one simple way to have good government. A dictatorship such as that of Julius Caesar under the Senate of Rome is another example of an efficient government. Certainty means the likelihood of a concept being true in reality.