For the benefit of people who might believe, here is one example.

One of my close relative who was promoted to higher position, remain single until today.
This man is very successful and is already in mid 40. He earns five figures monthly, has house and most of the thing he wants. He has many pretty and successful lady chasing him but somehow he is not interested in marriage. He is niether gay nor pondan.

One day, his elder brother ghost who died during childhood possessed one of his sister-in-law and tell the family member about the punishment he had made to the promoted brother. In fact nobody suspect it. It seem that he will remain single for the rest of his life.

This case is real and we Might not know what other ghost might do in other cases. For example, they could also made the promoted sibling seriously sick every year. Who knows?