Money doesn’t buy happiness is bullshit.
This lament is only ever spoken by someone who has money.
There is not a person on this planet that is destitute or struggling paycheque to paycheque who would ever say that more money would not make them happier.
Money removes the fundamental stresses of life.
No more stress about having a safe place to live.
No more stress about eating a healthy diet.
No more stress about ensuring an education for your children.
No more stress about providing for your family and friends.
Remove those stresses from anyones life and, just by default, it is MUCH happier.