I think the key is in your article: "Once we’re assured of regular food and adequate shelter and a basic degree of financial security".

Having money has changed my life. Being able to pay for the bus ticket to go out, being able to eat good food, even being able to escape winter to spend some time in the sun (a lot more than basic needs). All of that have changed my life so much that I can't believe people who say that money doesn't bring happiness. That basic level is hard to get to if you're not born into it. It's a lot of work, but the reward is there and money will change your life for the better.