In the 50 years since Colin Meads was sent off at Murrayfield, the All Blacks winning narrative has been punctuated with a litany of incidents that would, in all objectivity have reached the red card threshold.
In 1987 Buck Shelford punched Huw Richards unconscious in the World Cup semifinal, only for the Welsh lock, who had started the fracas, to be sent off once.
Richard Loe infamously spread Wallabies wing Paul Carozza's nose across his face with his elbow in 1992 and the following year, Jamie Joseph stamped on the ankle of England's debutante halfback Kieran Bracken.
In 2012 Andrew Hore lashed out and knocked out Welsh lock Bradley Davis in the early minutes of their November test and yet avoided censure at the time, only to be cited after the game and handed a five-week suspension.
No red cards, though, and the All Blacks, if they are honest, will agree that they have ridden their luck to some extent in the last 30 years.
They aren't ill-disciplined by trait, yet they have had a number of ill-disciplined moments that have gone unpunished and as a consequence, it has bred the perception that the All Blacks get away with things other teams don't.
That's been a source of frustration at times as it has become a panacea explanation to justify why the All Blacks have been so good for so long.
Like all good teams, they do probably win a few refereeing decisions on the back of their continued excellence and dominance. Referees probably do form occasional pictures that are based more on what they think they are seeing based on perception and reputation.
The lack of red cards matched against the known acts of foul play has strengthened the critics' view that the All Blacks live a charmed life so the fate of Williams, while hardly to be encouraged or condoned, has perhaps done the team a favour in the long term.
Williams' red card is irrefutable evidence the All Blacks are subjected to the same scrutiny from officialdom as every other team.
And the irony of it all perhaps, is that of the acts of foul play committed by All Blacks since Shelford's knock-out blow, his would be the least worthy of a red card in that it was clearly unintentional.