How do you explain away things like lobbying money (i.e. bribery), or politicians remaining in their post despite glaringly obvious physical and cognitive decli

How do you explain away things like lobbying money (i.e. bribery), or politicians remaining in their post despite glaringly obvious physical and cognitive decline, or insider trading, or the stacking of courts with biased judges, or total lack of enforcement of the law, or the media being so obviously controlled by state-aligned actors? To name but a few.