You vet sounds like a liberal infected with Cat Love Fever.
Talk to any ER Doc or RN about cat scratch/bite fever versus dog bite infections in spite of many more dog bites than cat bites.
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.