Just because something doesn't solve
all problems doesn't mean it's still not incredibly useful for the problems it
does solve. And plenty of crimes aren't out of class-based "desperation" at all -- e.g. rape or stalking.
So I'm not sure why you're acting like there's some intentional effort to target the lower class but not upper class. The US goes after white collar crime heavily as well -- you'll find out quickly if you try to embezzle funds from your employer.
Obviously, CCTV is effective against physical crimes. White-collar tends to be caught with digital records like bank reporting, e-mails and texts, and so on.
So I don't know what you mean when you say white collar crime has no equivalent deterrent. In a nutshell, databases are the equivalent.