“If your culture is weak, your immune system is weak and you’re going to be susceptible to every example of bad behavior.”
Arianna Huffington
I don’t know if Huffington meant to say that culture affects an organization’s immune system or if she believes that culture is the immune system.
Personally, I like the idea that culture is your immune system. Even when you eat well, exercise vigorously and rest sufficiently, a small scratch from a rusty nail will require a strong response from the immune system. Similarly in an organization, even if you have clear policies, comprehensive training and robust controls, you will need strong values to kick in when existing rules don’t apply to a new situation.
How strong are your values?
The Ethical Leader 