新概念3第4课不太明白有个句子不太明白

新概念3第4课不太明白有个句子不太明白
These days,people who do manual work often receive far more money than people who work in offices.People who work in offices are frequently referred to as ‘white-collar workers' for the simple reason that they usually wear a collar and tie to go to work.Such is human nature,that a great many people are often willing to sacrifice higher pay for the privilege of becoming white-collar workers.This can give rise to curious situations,as it did in the case of Alfred Bloggs who worked as a dustman for the Ellesmere Corporation.
as it did in the case of Alfred Bloggs who worked as a dustman for the Ellesmere Corporation.参考书上说 it指代上一句中that 的从句 did 替代的是 give rise to human nature
问题来了我们把it 和did还原 就是 a great many people who are often willing to sacrifice higher pay for the privilege of becoming white-collar workers.give rise to human nature in the case of Alfred Bloggs who worked as a dustman for the Ellesmere Corporation.如果是这样的话翻译不通顺啊