Very interesting. You thought of corruption by administrators (and rightly so, see my posts, e.g., about Nestlé and water-rights abuses, e.g., in the US and elsewhere.)
I thought more of abuse by citizens. People tend to value services that are free of charge low.
Regarding the showcase of #Scandinavian countries, they cannot be the benchmark. I'm no #anthropologist but I'd suspect that the following factors influence this result: