1. I don't think you need to retire it because the thinking patterns you've developed are very self-defeating and negative.
2. The articles you linked to are, at best, angry and judgmental tirades.
3. How we help the world is different for every person.

You can't let someone tell you that making art, in whatever fashion, is a waste because someone is starving in Syria. As we all know, art functions at many different levels and we all give in varying degrees. Art can bring attention to subjects that wouldn't be discussed if we didn't broach the subject (like abuse, rape, genocide and bigotry). Art can uplift souls as well as expose them to the darker side of humanity. Art exists as an expression of life itself. You might not be able to bring food to that person in Syria, but you sure as heck can write or paint or sew or whatever your medium to influence someone here. Maybe they can help that person we're talking about as well?

Morality, in my opinion, can boil down to one simple question; are you providing value for someone else? If you are only contributing to negative states of mind, like the authors of the links you provided, then you are pushing them down, not lifting them up, not being of value to them.

Don't waste energy pushing yourself or someone else down. Engage in whatever artistic pursuits you enjoy. Watch a movie. Go for a bike ride. Because if you made someone smile today, you made a difference. Just ask around these forums, especially these forums, how important getting a chance to smile is and then slap those so-called theists and philosophers with it because you helped someone where they didn't.