Leo it is a sign that enjoys attention, publicity, wealth, the good life and luxury. So, he would easily decide to have a relationship with a person, only if he belonged to a profession that would have to do with his personal promotion, for example showbiz or something artistic anyway. He would try to further his career by having a relationship with a director, producer, channeler, actor, singer, screenwriter, lyricist etc. He would do anything that would help him gain fame, glory and fortune.
for Scorpio things are different. Yes, it is a sign that would "step over corpses" to get what it wants. And what does he want? Power and money. And he would be willing to have an affair just to move up the hierarchy, to have a position of power in his job and of course a bigger salary. After having all these, he would not hesitate to throw the other down.
We all know how ambitious and hardworking he is Capricorn. Yes, he would do anything for his career. Even a relationship within his workplace or related to his work. He would never do it with a person below him, but only with a superior, such as a boss, manager, CEO, etc. Of course, this did not mean that he himself would stop working or trying.