I actually don't see anything mean-spirited or jealous (or even under-informed) about that comic. Though it's true that the representation of Rich is inaccurate, it seems pretty clear that it's all meant as a good-natured lark. I imagine the train of thought was something like: "Holy cow, One Of Us just made a million dollars! That's AWESOME!" "Ha, I wonder what your average geek would spend $1M dollars on?... hey, comic premise!" And they used Rich as the set-up to the premise because, well, he was the set-up to the premise. Nothing personal!