I think the two feed off of each other, Jules. Where there is little personal integrity, responsibility or courage, there are those who are only too happy to sell out to anyone who will provide them with a sense of safety and security, no matter how false it is, and there is always someone waiting to take advantage of that, using the opportunity to spread the rot, to engender more fear and to use the ever-increasing power of that fear to shackle those who aren't ready to cower, to overwhelm them with sheer numbers.
Throw in a healthy dose of apathy, self-immersion and "better him than me" mentality and top it with desensitization and the excuses of "I thought it was another stunt" . . .
Too many people firmly believe that as long as they don't participate, they have no culpability, moral or otherwise.