"Let your conduct be without covetousness…."

I try not to get too political on this blog but these verses really spoke to me. 

Hebrews 13:5-6(NKJV)

Let your conduct be without covetousness; be content with such things as you have. For He Himself has said, “I will never leave you nor forsake you.”  

So we may boldly say:      “The Lord is my helper;     I will not fear.     What can man do to me?” 

Unfortunately most of what I see coming from Red Letter Christians is based almost exclusively on covetousness. 

"This group of people over here have X and you don't have X.  It's not fair!"

I don't see much "be content" there.