Is flower gardening a waste of resources?

I have a vegetable garden and several small flower beds. The vegetable garden will yield food as well as being pretty to look at and while I’m sure there are some food uses for some flowers it occurs to me that they are really just to look at. One of my flower beds is devoted exclusively to “wild flowers”. I bought the seeds and other than yellow poppies none of them look like flowers that are native to Arizona’s high plains and mountains where I live. They don’t require much water but I also have several rose bushes as well as some other flowers that require extensive watering.