> For example if all your friends are in Harvard chances are that you are not poor; and that ads about expensive/luxury services will convert better than for m

> For example if all your friends are in Harvard chances are that you are not poor; and that ads about expensive/luxury services will convert better than for most people. Perhaps, but a better predictor would still be whether or not the person has searched for anything related to luxury goods in the past, thereby demonstrating not only ability, but actual intent as well.