Write a story about a scientist who invents a machine that can erase specific memories from a person’s mind

Write a story about a scientist who invents a machine that can erase specific memories from a person’s mind. As the scientist begins using the machine on willing test subjects, they start to question the ethical implications of altering someone’s memories. One day, the scientist is faced with a difficult decision when a powerful individual offers to pay a large sum of money to have their own memories erased. The scientist must decide whether to use their invention for personal gain or stick to their moral principles.