A quick word here about the difference between a Dom and an abuser.
A Dom does care for his sub and a Master/Owner even more since he is investing a lot of time and effort in making her happy. A Dom/Master has to since an unhappy sub will not be his for very long. I can only tell you that when I take either a sub or slave I have spent a lot of time talking with her, feeling her out as too her stability. Unfortuneitly I am not all ways right, as recent experience has proven, but I am all ways thinking about what is good for her. Sometimes that is letting her go, no matter how beautiful she is, for the good of both of us.
An abuser is only wearing the title of Dom to convince subs that he will be safe to trust their body and mind too. He wants to hurt and harm, probably doesn't like woman very much other then to take out deep seeded hostilities on them. He may well be straight sexually but even that can be nothing more then an act since a lot of them just care about themselves and are more Asexual then sexual.
A poser normally is harmless enough since he is looking for easy sex where his skills won't be questioned since he is the Dom.