You ask "who TF cares?" yet keep wasting your time finding reasons to justify something you deem irrelevant (the Vespa gang having fancy things while being portrayed as too destitute to afford water).
Some viewers (myself included) assume that a destitute group of youths would look far more haggard if the point was to make them sympathetic for having to resort to stealing. Y'know... as opposed to selling their stuff or riding their Vespas to a district where there *is* work. But if it doesn't bother you, then why worry about it seeming weird to anyone else?
But I do like your assertion that Fett's tenure as daimyo has already wiped out the jobs in Mos Espa. I mean, incompetent crime boss learning the ropes is one thing, but I didn't realize that catastrophically inept enough to dry up a job market in record time was the design to start Fett's arc from. I love it! Uncle Fettster strikes again!