Perhaps, it was the connection between tragedy writer, Wolf Professor, and the decaying husband that inspired Salvatore—because according to the intelligence that Salvatore had received from the side of the Dragon Well Tea, the so-called "Wolf Professor" seemed to be just another identity of the "Gray Professor" Tricino Seti, who was also the Pope of the god of murder and conspiracy.
The Gray Professor, who was proficient in idol magic, had separated a part of himself and made it parasitic in the corpse of his student. He didn't just take over the existence of the other person, but also by changing half of his name, directly negated the possibility of the other person's resurrection.
For this reason, the "Wolf Professor," as a young wizard under the age of fifty, possessed such formidable power—because the person inside this shell wasn't truly him.
And if this capability wasn't seen as the unique skill of the "Professor Series" of gentlemen.