If money could guarantee someone peace of mind, then the man in person would've spent half of what he's acquired to find peace but what we was going through was beyond his wealth, and he's a prove that one can have all the billions and still not get peace or happiness. I might be wrong though but what's your opinion?
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.
Honestly, I don't about others but I love having money because it allows me to create my mode of happiness. There is no dignity in being poor or cashless it lowers one's confidence and diminishes your physical presence. Money might not solve all problems in life but it gives you an edge over them. Life in general becomes easier with some money in the bank.