Professional athletes need to know that using their significant others as punching bags isn't acceptable and won't be tolerated no matter how "talented" they are or how many Super Bowl rings they have. If threatening a player's job security is the only way to get them to think twice about assaulting anyone, then so be it.
In the throes of the widespread criticism of the lenient suspension in the Ray Rice case, Goodell has stated "I didn't get it right." He has absolute power as judge and jury in determining the penalties for off the field misconduct. In future situations he could be at risk again for not getting it right.