Goddess Nemesis needed to teach this guy how to behave properly as she was not ok with how he behaved. She had to show him what she was prepared to do to such a person and that is why she used her foot domination fetish to dominate as well as to degrade him. He regretted what happened to him as she slapped him with her feet and made him feel a lot of pain.
Goddess Nemesis needed to train her new slave and she did this with her foot domination fetish. She did not want this guy to think that he was ready to do all she wanted him to do. He had to be patient and learn to be good as well as taking instructions., So she trampled him with her foot domination fetish and she got him to do what she wanted.
Goddess Nemesis felt that she had a useless maid and she did not want to let it be a thing. She had to punish her and that is exactly what she did to her. It was the kind of thing that the maid had never experienced before and she had to ensure that she made her experience it so that she learned to fear her and to always obey her.