She says strength doesn't matter, but try being around a bodybuilder without feeling at least a bit intimidated.
Your physical body is your "user interface" with the world, so if your body is weak and sickly, it's hard to project force and confidence into your interactions with other people.
I'm not talking about being a bully, of course. I'm talking about standing up and being confident being assisted by the deep, body-centered knowledge that you are able to effectively 'handle' yourself and your physical environment.
A very large muscled man will really distort a social setting. Men will offer to buy him drinks. Women want to touch him. It commands immediate respect from everyone around. It's very strange.
The first thing that the brain thinks when seeing a bodybuilder is that it would not win in a fight, nor would it be able to run (no, you can't outrun them - they may have no endurance, but in the first 5 minutes they can outrun and outmatch almost anyone), so instinctively, it's afraid and more careful/respectful in order not to anger that person.
The same goes for martial art experts of course, but it may not be immediately obvious that the person is stronger/faster. If you are the MA expert, you'll be confident that you can take on anyone in the room, which makes you calmer and increases your outwards confidence, as well.
It's all really interesting, indeed...
He told me that when you face someone who would be "intimidated", you have to realize that when this person is going to have to go for a crap, he will be sitting on the same seat everybody sits, and will be ejecting stinking shit like everybody else.
We are all humans.
I've been pondering lately, if I defined my own decathlon, would I win the world championship? Maybe the state championship at least?