When this mistress noticed that she was dealing with a guy who did not like to do things the way she wanted them to be done, she knew that she had to punish this guy and do it in a way that he had never felt before. That is why she cruelly trampled the shit out of him and made sure that he felt pain and that he learned from it.
Goddess Gabriella wanted to use this guy as her human foot rug. He had been pissing her off and she wanted the perfect way to demonstrate to him that she was not happy with him. She felt that using him as her foot rug was the best way to do it. So she did it and she made him feel pain and humiliation in equal measure. He never messed with her again.