That didn't mean individual members of the Brotherhood hierarchy-William Sutcliffe, in particular- couldn't be dirty in some way. That's the way it seemed to scan. Sutcliffe was involved in something deep and dark, which Lolly learned about accidentally from the line tap. Then Sutcliffe found out that she was on to him, so scratch Lolly. A couple of days later, Patrick comes around asking questions about his love interest. I had no idea whether the woman Patrick was tracking had anything to do with whatever drek Lolly had turned up, or whether Sutcliffe was simply paranoid about anyone asking any strange questions.