I'm saying that software developer lifestyles only look good because of the terribly poor conditions many other people work in, both in developed economies and in more obviously poverty-stricken places. We're lucky not to be those people, but to me "luxury" implies either greed or wastefulness - that as software developers we're getting some kind of unreasonably good deal from the world. I don't think we are. I think more people should get the kind of deal that software developers do.
Sure, in relative terms you can say that developers are lucky. But I'm not sure it makes much sense to say "you're lucky that you don't live in poverty", because we should consider modestly affluent lifestyles to be the norm and poverty to be the aberration that needs to be explained.