There will always be many definitions of wealth and poverty in the view of every human being, but it seems that the OP refers to the use of money to judge who is rich and who is poor, but it is a little unclear that most rich people actually prefer simple clothes rather than looking much more attractive with luxurious items, but not a few rich people also use expensive items on their bodies, and I think we cannot see what the rich can and cannot do in the use of their money.
But I always believe that rich people use their money more for their needs rather than just for style like poor people in general who want to look rich.
That is indeed very true because in real life everyone can see that most rich people always prioritize the needs they need most in life with their money rather than buying more luxury goods that in the end are also unused and will be wasted in the end except for rich people who really like to collect luxury goods to display in the garage and also in their special room. Meanwhile, poor people who have a very hard time and rarely use luxury goods will always use their money for these things, even though they sometimes buy them in installments and are willing to hold back their stomach contents for a while in order to be able to have luxury goods in their lives.