In Edgar Allan Poe's story "Hop-Frog; or The Eight Chained Ourang-Outangs," why were the king and his ministers the "real" fools? Please help! :)

Hop-Frog and Tripetta are the traditional jesters or fools
of the court. The King’s generals forcibly took them from whatever land they came
from to serve as slaves: entertainment for the king and his seven ministers. The king
and the ministers love a good joke and it is clear that they get a kick out of
humiliating and abusing Hop-Frog and Tripetta. The King and his seven ministers are the
fools because Hop-Frog turns the tables on them. First he convinces them to act like
fools. Then they are humiliated in front of all attendees at the masquerade and finally
die a painful death. This is plain old irony. The fool makes the authorities, the
abusive king and his ministers, look like fools.