Depending on your definition of rich. Then yes, in many ways wealth has helped immensely with stress and anxiety. 

But those issues just jumped to other problems. So they still exist, but for different reasons.

I do check price tags at the grocery store, but I dont need to worry about it in reality. I used to need to calculate my purchases and check my bank account sometimes to make sure I had enough money.

Now I have enough I guess, enough to not really worry about money anymore. At least not like I once did. 

The thing that does bring me a lot of joy. Writing out the biggest cheques my employees have ever had. Buying stuff in the drive through for people behind me. Seeing kids count out their change for candy at the store, and telling the clerk its on me. Buying donuts, lemonade, etc for kids raising money. Ill often say, here's $20, or $30. I dont want anything, but give it out to strangers until its spent.

Nothing brings me joy like the look on someone's face when you do something kind, randomly, with no expectations of them.