I don't really have a whole lot more to add to what you just said, but I honestly think you may be right. Even if a man's self-esteem is lower than their godly-ego'd male peers, then that's just a whole other list of issues for them to act out.
Also, this is only loosely related to the topic at hand here, but I just love to share this article because it was so mind-blowing for me to read.https://www.psychologytoday.com/us/blog/toxic-relationships/202004/neuroscience-explains-how-narcissist-can-control-our-brain
"The master is aggressive and motivated to maintain power and control, while the accommodator is passive and motivated to maintain love and connection."
"Even though some individuals may be assertive and appear to behave independently prior to or outside of the relationship, once they're attached to a master, they increasingly accommodate the dominant partner."
And this one quote in particular really hit me, and I think is why I felt like sharing it here —
"The dominant partner has no incentive to give up control. It’s up to the subordinate partner to change the relationship dynamics."
There really is no incentive for them to change, there is no incentive for them to help form and maintain healthy relationships. You can leave and save yourself, but there will always be another victim.
Anyways, sorry, long ass post. I'm done now. Just wanted to go on a tangent.