Well, again FWIW, according to my vet, the cats who have the nastiest bites tend to be outdoor cats whose little fangs get into dead/wild/nasty things. According to her, your average house mau doesn't chew anything nastier that catfood, and that helps decrease the risk. She always recommends proper first aid if there's a scratch and/or bite, followed by a doctor's visit if need be. But I think she was making more of a point about how filthy the human mouth can be and how we don't take that into consideration.
Also, what the cat licks all day can be a vector for some nasty micro critters.