So well said DaasYochid!
My thought about it are:1)If someone earned the money honestly and didn’t ask me to subsidize his expensive watch (or whatever bauble)I don’t care. 2)I personally wouldn’t don’t understand the need of someone to buy such high end thing unless it is much better than a lower end item i.e. lasts much longer, better resale value, more comfortable. 3)People should look at their own budgets and pockets and not someone else’s.
Oh, and more ahavas Yisroel and less jealousy would make Moshiach come faster, I think.