I actually have a greater disgust for those who see it but don't act. I think this line from an incredibly relevant book is precisely this:

> "Your ‘little men,’ your Nazi friends, were not against National Socialism in principle. Men like me, who were, are the greater offenders, not because we knew better (that would be too much to say) but because we sensed better.

Those who act on behalf of evil are not free from guilt, of course. But the truly damned are those who sense better but look the other way. They walk in the footsteps of the millions who tacitly supported the last time this evil took hold of the world, by not acting.

This entire book, but especially this exerpt, is a must read: https://press.uchicago.edu/Misc/Chicago/511928.htm