You are right but it is better to be rich than to be poor. The reason is that you can also read many news about people that are not rich but killed themselves so are the news of rich people doing so sometimes. I think the poor killed themselves than the rich people because the poor are more than the rich. Money may give people some ways to happiness but there are some things like sickness or bad health and other things that can make it not happen. But the poor can suffer those also.
If everyone has the ability to be rich, none of them want to be poor. Unfortunately, some people have no way to be rich because they have many limitations in their life. However, it is true that the happiness won't depend on the economic status of someone. Even if someone is rich, he can be not happy because of a lot of problems in his life. When someone is too focused in looking for money, he may forget to enjoy the life. It may lead to frustrations if someone can't enjoy his life.