Professor Moriarty would also likely be disinterested in actually coming after you. He only targeted Holmes because Holmes kept uncovering his criminal plans. He began to see Holmes as a roadblock, and was continuously frustrated by Holmes’ investigative abilities. As long as you weren’t in Moriarty’s way and didn’t have anything to offer him, he likely wouldn’t care about you. After all, his public image was that of a respected scholar. You’d be a little fish in a very big pond, and Moriarty was smart enough to recognize that going after you would net him nothing in return.