Supermarket eggs are of inferior quality to pasture raised ones. It's upto you whether you want to eat them. I've experimented with eating organic, cage free eggs but the yolk part tastes bitter raw, compared to the pasture raised one which has a pleasant taste to it.
Now, that said, I don't think you need to worry about salmonella from the organic eggs. Experiment with it, and depending on if you have access to other quality food, I would only eat
those eggs occasionally, and not as a staple.
I once contacted an organic egg farmer and I asked him some questions, he said sometimes they roast their soy grains before giving it to the hens. I also inferred from what else he said that they do not go outside much.....and a bunch of hens crammed into a henhouse does not seem healthy.
Now, I personally..have access to pastured eggs. If I didn't have access to it, I might experiment with the organic eggs and try them, but I wouldn't want to use them as a staple.