前面一个问题 https://www.cpsenglish.com/question/51315 中，2021新全国卷I阅读理解D下面这个段落中，cheater 是表示“骗子”吧？但不是用 cheat 表示“骗子”的吗？查了一下词典，cheater 确实也表示“骗子”，那 cheat 与 cheater 表示“骗子”有什么区别？

We prefer to describe emotional intelligence as a specific set of skills that can be used for either good or bad purposes. The ability to accurately understand how others are feeling may be used by a doctor to find how best to help her patients, while a cheater might use it to control potential victims. Being emotionally intelligent does not necessarily make one a moral person.