The case of silly orator in a democracy

The problem with democracy is to avoid silly people pretending to be an eligible representative.

Currently we have loose control over the qualification of the people's representative in the government.

The problem with "Orator"

"Orator" is an essential part of a functioning republic-style democracy. "Orator" is a person who get to represent its people into the house.

What if an "Orator" is a silly person pretending to be smart, who will eventually abuse democractic process? It's going to be a downfall of a particular republic.

Public must safeguard itself from silly orator. Silly orator is a disease in any functioning democracy.