It isn’t unheard of for domestic violence to spill outside of the relationship though - about two thirds of the mass shootings in the US are done by domestic violence abusers.
More than two-thirds of mass shootings are domestic violence incidents or are perpetrated by shooters with a history of domestic violence, according to one of the first peer-reviewed research papers exploring the links between domestic violence (DV) and mass shootings. The paper also finds that...
efsgv.org
Now obviously I’m not saying that if I was a United employee that I’d be worried that Greenwood would walk in with an AK47 and mow me down. But, especially since I would find it nigh on impossible to be friendly/collegiate with him, would I be nervous that he might lash out in anger to any incivility shown him - yes.
As I know you know abusers generally don’t confine themselves to only physical abuse, they are often adept at verbal and emotional abuse too, behaviors that can happen more easily in an office environment. His presence would certainly create a very tense working environment and I expect I’d be especially anxious if I myself had ever experienced domestic violence.
As
@Daveysgingerlovechild said it is to be hoped that Greenwood is genuinely trying to be a better man and can reform. But change can be very difficult and if his circumstances are the same (same relationship, same working environment and privileged job) to me it seems like there is less pressure on him to maintain higher standards and also for others to avoid following the same path.
You seem to hint at that yourself