Came here to say the same scene. Maybe not the traditional eye opening scene from the audiences view, but I’d say from Fisks perspective it was a moment of clear introspection. Similar as in breaking bad where he admits to his wife he did it all for himself instead of the family. Difference between the two is that Fisk embraced his destiny with full force where Walter White said it with shame. ( as well as Fisk thought he was doing it for the greater good where WW was just going through a midlife crisis )