In the course of a relationship, there are always power plays. It is often asked "who wears the trousers". But I think that is too simple a way of putting it.
Who runs a country: the head of government or the person they go back and ask for advice as things are getting on top of them and they are having doubts?
Who wields the power in a company? The CEO of course. So how powerful is the PA that organises their busy day?
Who has more power: the person that does what they want because they think they are physically stronger than everyone or the person that gets what they want because they use their mental strength, skills and plan for more than themselves?
Some have figured out how to hold power without wearing trousers. Power is a fluid concept. Like art, like this image, it is in the eye of the beholder.
Where do you see the real power?