Are you being deliberately obtuse? To humour you...
1. How do you know that that neighbourhood is not also the neighbourhood of the subjects of your photograph?
2. How do you know that they are privileged? Because they are wearing a suit? I would bet a considerable amount of money on the fact that those suits cost less, or the same as branded sportswear, the presence of which would presumably have gone un-criticised by you.
3. Wearing a suit is, regrettably, still perceived in many jobs to be necessary - at least at the interview stage - to make a good impression on potential employers. Many jobs require a smart uniform to be worn. I am not commenting on the rightness or wrongness of that, but if being seen to be wearing a suit or any smart uniform is such a negative thing (which, judging by your reaction, it is) then impressionable young people, who may be entering the job market soon, are disadvantaged from the start.
I could go on. Unless, of course, I have completely misunderstood and you're in fact referring to the fact that wearing brown shoes and carrying a black briefcase, as the gentleman on the left appears to be doing, is obviously heinous and unforgiveable, in which case I agree entirely...