Answer:  When it comes to stopping for pedestrians, the answer is a resounding YES.

See video from BBC here

Additional details (from BBC):

“He’s here to illustrate one of his more provocative experiments – who is more likely to stop for pedestrians, the rich or the poor?

Drivers are legally obliged to stop if someone wishes to cross. And, as a Lexus blithely slips through in front of him, Piff explains what his researchers found.

“None of the drivers of the least expensive cars broke the law, while close to 50% of our most expensive car drivers broke the law,” he says.