It's not about safety in numbers, it's about standing up. There is a kids book you should read, Johnny Tremain by Esther Forbes.
It's about bravery in the face of great might and terrible consequence. It's about (and this is the important one) defining morality and justice through the eyes of history.
People make right, and numbers bring change.
At least de Tocqueville understood that he must speak out in the face of great resistance to his beliefs. In fact from your own knowledge of de Tocqueville you should know that he would have been involved in both the civil rights movement and other non-violent acts of civil disobedience.
Do you tout this 'no safety in numbers' line because you fear the discomfort involved in standing up for what's right? Or do you repeat it so that you will feel justified at some future juncture when you do nothing and morally should have broke the law and protested?