Every accusation is a confession is my favorite quote lately. Apart for immediately backed by evidence incidents, any projection of wrongdoing is just a way of saying "if I were in your position and had your abilities I would do that". Therefore, those who are in this position are definitely doing whatever they accuse others of.
If you think about it, it makes a lot sense. Our human to human communications are actually rather rudimentary, we can't transfer much information. Instead, we all create a model of others based on our own ideas and experiences and whatever we think others are doing it is based on our own ideas.
Assuming that people in positions of power behave like an average human is a pretty good way of predicting what they will do. Maybe condition it a little on what they say if they are talking about concrete actions they plan to take. The challenge in politics isn't figuring out how people will abuse power, it is stopping them despite it being well understood what is about to happen.
Nobody is surprised when it turns out gatherings of powerful people are nests of corruption and malevolence. Eg, if I talk about the "bone saw incident" it isn't ambiguous who I mean - but the major actors are still welcome in polite society. That is the quality of person we're dealing with in positions of power - slightly extreme example, but still acceptable by global standards.
If you think about it, it makes a lot sense. Our human to human communications are actually rather rudimentary, we can't transfer much information. Instead, we all create a model of others based on our own ideas and experiences and whatever we think others are doing it is based on our own ideas.