Saying 'It was a long time ago ...' or 'She had no influence...' is not the point.
You can't start examining each case on its 'merits' because no system of justice can operate effectively under such a system.
That means we hold no-one responsible, which is no system at all, or we hold everyone responsible, so excuses, then everyone has the same system of justice.
That is why this woman was brought to trial, and convicted.
Everyone equal, no exceptions.
That is the way justice works, because it's the only way it works.