Looks like they’ve known this for awhile. I missed this, thanks for posting.

• people of lower economic status were better at reading others’ facial expressions—an important marker of empathy—than wealthier people.
• drivers of luxury cars were four times less likely than those in less expensive vehicles to stop and allow pedestrians the right of way. They were also more likely to cut off other drivers.
• A number of studies have found that affluent children are more vulnerable to substance-abuse issues, potentially because of high pressure to achieve and isolation from parents.
• While a process addiction is not a chemical addiction, it does involve compulsive behavior—in this case, an addiction to the good feeling that comes from receiving money or possessions—which can ultimately lead to negative consequences and harm the individual’s well-being.
• In upwardly mobile communities, children are often pressed to excel at multiple academic and extracurricular pursuits to maximize their long-term academic prospects—a phenomenon that may well engender high stress
• There is no direct correlation between income and happiness. After a certain level of income that can take care of basic needs and relieve strain (some say $50,000 a year, some say $75,000), wealth makes hardly any difference to overall well-being and happiness and, if anything, only harms well-being: