"Well adjusted people so not want that power over other people"
There are certainly well adjusted people that would like to fix things they feel are inefficiencies or issues in their government, especially when those issues are directly related to their areas of expertise. Thinking well adjusted people wouldn't want to be in a position of power is exactly how you ensure that only bad people end up with power.
Power seekers acquire power, not knowledge seekers. This is from Plato’s The Republic so about as old as it gets.