>despite this the German population seems to strongly believe there is no corruption in their government

Because Germans only believe what their state speech controlled media is telling them. The prussian school is based on getting people to respect authority not about free critical thinking. Makes the population easily susceptible to government propaganda which has been used against them for 100 years already and they still haven't learned.

They also don't believe any foreigners pointing out their internal issue: "no, YOU are wrong, we make ze best cars in ze world(not anymore lol), so our country can't be doing anything wrong".