What is a question about this article? If the question is unanswerable, say "unanswerable".

More generally, corruption erodes the institutional capacity of government if procedures are disregarded, resources are siphoned off, and public offices are bought and sold. Corruption undermines the legitimacy of government and such democratic values as trust and tolerance. Recent evidence suggests that variation in the levels of corruption amongst high-income democracies can vary significantly depending on the level of accountability of decision-makers. Evidence from fragile states also shows that corruption and bribery can adversely impact trust in institutions.

The level of corruption can vary in richer democracies in regards to the what of those officials making decisions?
accountability