A common mistake when writing adventures set in deserts is to assume that the climate is too ferociously hot to wear armor. Historically, most battles in deserts involved troops dressed in protective armor. Although they would have been miserable during the hottest part of the day or the hottest part of the year, desert weather isn't intolerably hot 24/7.
A culture has it forbidden to say their rulers name under penalty of death. Anybody in power must be referred to as their title. Comes from the fact that the rule or position can be taken over by anybody from any level in society. To use the title elevates them or brings them down from whatever level they were originally at before they took the position. Respect and authority comes from the position, not from previous life.