"I am not against bank notes as such … I want to give everybody the right to issue his own banknotes. The problem then would be to get other men to accept such private banknotes; maybe nobody will take them."
Many healthcare professionals have happily embraced the same attitude as cops: "We're experts, don't you dare question us." But the 100,000 yearly medical-error deaths suggest this expertise ought to be questioned more often.
Different people often react quite differently to the same conditions, so attempts to blame religious conflict on material deprivation fail. Ideological differences also better explain why Islam is not monolithic.