In some patriarchal societies the men are given overt power of life and death over other people who are not men. One example is ancient Rome, fathers were given the right to kill their children, even if their offspring were well into adulthood.
There other examples if one cares to put a little time and research into it.
Also, if we recall it wasn't that long ago (in the us) that white dudes used to kill poc just to assert their dominance over them as they felt they were entitled to do.
The same sense of entitlement remains, it just seems that the folks who feel it are less and less discriminating about who they target.