Earlier quoted context omitted.
Taking care of employees has nothing to do with what I said. Tobacco companies also take care of their people. Panda Express and Five Guys are also well-liked by the customers who get sick consuming their products.
The real problem with what you said is probably the visit frequency of your average Costco customer. It's not likely to be the place you go often enough to get unhealthy off the hot dogs - the whole point is stocking up on items in bulk. A hotdog a month isn't going to make you need blood pressure or cholesterol meds.
That is a huge misconception. Many people use Costco as a frequent take out food place. Pizza and hotdogs. In my kids class alone I know of several parents who often pass by Costco on the way from school to feed kids dinner there. It's done far more often than you think.