It just requires enough others to say the same thing for it to be verified.
If you want your post verified, that'll cost you $100
It's not uncommon for something like 80% of government officials of all types to be corrupt, compared to under 5-10% in the west.
Go to one of these countries and you'll see it for yourself first hand if you ever deal with the government in any capacity.
You may start to see the same thing in the west with idelologues such as Trump, who care more about loyalty and power than corruption. He has already removed a lot of checks and balances in the system.