Anyone with the slightest amount of official power, like a government officer, has the ability to prevent things going forward on his part. In this kind of society, most people are poor and it would be considered stupid to not demand a small (or large) bribe from the citizen in order to unlock the process. Everyone does it, more with outsiders and to a lesser extent with one's circle of acquaintances (because the social fabric between known parties is the other way to unlock things). Corruption surely is one thing that really trickles down from the top.
So, things like like obediently waiting in the queue for your turn or complaining about the officer won't help unlike in high-trust societies. If you try that in a low-trust society there will be additional documents, stamps, acknowledges, or signatures you need, and keep needing, in order to complete your request until you get the drift and bring a little something. Corruption gets things going and in a society that has no trust it is a positive trait.
In Western democracies this sounds unimaginable because there's a stronger sense that right things will work out right just because of the rules. Western corruption happens on a different level: a regular western citizen has no benefit from giving bribes and he would object to the police or government officials from demanding one. Western corruption mostly concerns about the powerful and rich making friendly mutual agreements to bend the governing bodies and law to enable themselves become more powerful and richer.