It's not a big deal for healthy people and non fatal diseases. It's however a big deal when you need antibiotics the most.

So, the choice is to reserve them to the most extreme cases which will save the most human lives possible. Or, use them all over the place improving the average quality of life at the expense of significantly more people dying.

I think it's reasonable for humanity to pick either option, but pretending it's not an important choice is over simplified.