First, I apologize to the original poster and readers for the digression about cheese.They taste just fine, as does the cheese. Like I said earlier, I grew up in Europe, embedded in the local country practices and enjoying real, fresh food from our farm. But even there, even with people eating raw eggs, when it came to dairy, everybody knew that you boil the milk first before drinking it or making any cheese or yogurt with it. Even my old school grandma wouldn't even think of not boiling the milk first. So I have actually never had raw dairy of any kind, and can't weigh in on any taste comparisons. Grandma's yogurt and cheeses tasted amazing! I make them myself now with pasteurized store bought milk, and they taste just like I remember. What's lacking in the flavor in American grocery store dairy products can't be blamed on pasteurization. It's about technique, what's more practical on a large scale, and cultural preferences.
Now, i'm going to make an assumption from your name and I also apologize if I'm wrong, that your grandma came from a country in Eastern Europe, and that the kind of cheese she made was fresh cheese.
Pasteurized cheese can not curate like raw cheese for the very reason that it doesn't have the same bacterias. Here we have both mass produced pasteurized and raw cheese, and I can assure you that for cheeses that need to age like Comté or Camembert it makes a difference, even mass produced! I agree it doesn't really for fresh goat cheese, for example.
I would not comment on the taste of cheese or yogurt sold in the US : the last time I ate some was in 1993 and unlike your grandma's which left you a lovely memory, I don't remember at all what it tested like !
Since eggs don't age or curate and in fact test much better fresh, this isn't relevant to whether one should or could or not eat them raw. In my country people are much more afraid to catch salmonella in hospitals than in mayonnaise, but I guess it's easier to avoid mayonnaise than hospitalization.