If you went to eat at a pricey restaurant, would the smell in the kitchen matter to you?

You should be concerned about this kind of thing, regardless of how pricey or cheap the restaurant is.

Because you can get sick from food or water that's possibly contaminated with sewage bacteria and viruses.

Yes it would matter.

Absolutely not. I flunked on Yelp a restaurant because the table they gave me looked out on a patio where trash was strewn all over. On the other hand, the wonderful aromas from a bakery are enough to get my juices flowing.