Always,
1. Torah is democratic. The people must not approve of the form of government, as I previously posted, but of all of the leaders (Berachot 55a). They can even remove a king from office(Yerushalmi, Horiot 3,3).
2. The interesting thing about that gemara is that Yossi ben Yoezer didn’t want to repeal more decrees because he did not want to be called Yosef Sharya (Yosef the Lenient). Some things never change.
