To the extent a particular neighborhood can be identified as especially wealthy, it would seem fine to require them to pay for private maintenance of roads constructed by the subdivision developer in the first instance.
Or, instead of privatizing roads, the maintenance of roads could be paid for by taxes and the wealthy could be made to pay higher taxes. Crazy, I know.
What about police services and ambulance services for a poor versus rich person visiting that neighborhood?
This already happens in some places, but I don’t think it’s practical or fair.