Yeah. But it's not quite the same thing: I doubt you use that to 'prove' that you're as bad off as someone who doesn't have enough to eat. (In fact, I'm sure of it: if the reason you feel that discretionary spending is bad is because you're afraid you might need the money for essentials later, you certainly aren't in a mindset that thinks that poverty is peachy!)

Feeling trapped by stuff is one thing, and a perfectly valid emotion; feeling that that's as bad as poverty is another, and that's what I find objectionable.