
"All it takes for evil to flourish is for good to do nothing."
Long ago, on the continent of Mu, there existed a glorious civilization, far advanced beyond what humanity had to offer now. Fearing the rest of the world's barbarians and feeling that the continent had nothing that the world could offer them, Mu's leaders decided to isolate themselves from the rest of the world, creating a shield barrier that isolated them from the rest of the world.
Mu was ruled by a triumvirate which shared the same vision for Mu, let its culture prosper while keeping the continent from the rest of the world. However, in the 16th century, the leaders were getting old and in place of the triumvirate the 3 leaders decided to erect a Parliament to lead the civilization with a Prime Minister at its head. The leaders then carried out a series of scouting measures, selecting talents from the civilization, basing their judgments on criteria such as background, previous services, talents, etc.
Now, however, one of the triumvirate became corrupt in his/her old age. Note that Mu's people were not divided by sex or gender. So, instead of choosing what was best for the civilization, he/she chose its lover, someone who had the talent and skills somewhat, making this decision even before the scouting procedure was completed. One person on the triumvirate saw this for what it was and disappointed, thus gave up, keeping silent during the scouting process and just giving up trying to recommend his/her candidates.
In the end the new committee was formed, and Mu took a total change. It embarked on a different vision from the triumvirate era, and enslaved its citizens, ruling with total power, eventually embarking on a series of risky experiments. The continent sank as a result of the destabilizing forces created by the experiments soon after. A glorious civilization thus was erased from Earth due to a foolish vision that was not ascertained before transferring over leadership.
The fault of the corrupt member for not thinking of the civilization, or the fault of the member who stuck to her/his principles but failed to act on them? An open-ended question indeed..