One should note, the ego of an Abuser is that of the psychopath or narcissist; for that is what they are.
The Abuser may not be a serial killer, may not have any attribute which one could select that would indicate they have anything to be proud of to encourage their narcissism.
This does not change their nature.
An Abuser sees the world the same way as the serial killer.
The fact a particular Abuser never got to kill anyone, never got the power to become a Boss From Hell, is a minor feature. It is like being lacto-intolerant but never consuming dairy products.
The ‘genes’ are there, they just have not been tested.
Once one catches the fact that the Abuser has no empathy, does not see other people are equal… in fact, they could be card board cut outs, one knows how to adjust.