Nowhere is "many" defined as half. That's just something you feel or believe. At least half would be half of them and anything over that would be the majority of them.
Policing morality is not the same as willfully ignoring it.
If he was purposefully seeking out non licensed massage therapists, 9 out of the 26 wouldn't have been licensed massage therapist. I suppose one could say he wasn't specifically seeking out licensed massage therapists but it looks more like he took the "When the urge hits pick up the phone" method.
