Rich & Alone.
Alone =/ Unhappy
And "Money can't buy happiness" is a stupid saying. Of course it can't buy happiness, "happiness" is a feeling, an emotion. Money can't buy sadness, depression, anxiety or dismay, either. And let's face if, if you have a lot of money, you're not going to need to buy happiness... you'll already have PLENTY of it.
Also, how alone is alone? I'm sure if you're rich, you'll be pretty well known. If alone = not married, no close family, etc. I'm cool with that. I'm not a family person, and I don't ever see myself getting married in the future anyway.