There are no happy people. Just as arithmetic zero is zero times the number of any law, "nothing is happy."
Money and happiness are related, but I think happiness is more important than money. There are many super-rich people. They have money and countless possessions, but how many of them are really happy? Most are selfish, most are lonely, and most are unhappy.
Money is material, something we can see and touch, and many people prefer to rely on it. Happiness is spiritual, invisible and confusing, so many people ignore it and few people love it.
Having money is not happiness, but having no money is of course happiness. But I'm sure there are happy people who are happier than rich people!