One takeaway is that corruption is a tool of power. If there are a lot of "keys", chances are that you are a key and if a bribe demand is so bad that it is likely to be your top priority, you will switch your allegiance to a different leader.
The thing that others me is how we can have very unpopular things but I don't care enough to get rid of those things.
Take the second amendment (2A), for example. I don't want people to own guns and carry them on their person flaunting it at gas stations. However, I don't care about it enough to make it my single issue. So my understanding is there can be 5% of the voters really care about something stupid to ignore everything else and vote based on 2A for example.