Non-Muslims had to pay the poll tax but were exempt from the charity tax. They were excluded from military service and the highest political positions, but all other occupations and offices were open to them. Christians, Muslims, and Jews lived in fairly amicable harmony in this empire with the caveat that Muslims wielded ultimate political power and probably radiated an attitude of superiority, stemming from certainty that their culture and society represented the highest stage of civilization, much as Americans and western Europeans now tend to do vis-à-vis people of third world countries.