This is just a draft, it came to my mind while I was in bed.
Only rich people or kids are able to afford this game. They start from nothing and buy their way to richness by buying virtual expensive brands and building up their character. There is a top list of richest people. They need to use their real money to buy virtual expensive goods.
Everyone who wants to join needs to deposit certain amount of money. Anyone can follow them and watch their profile if rich allow them.
It doesn't sound like there's much value for the user, so I doubt that many people would pay for this. I'd recommend finding a problem or group of people that you want to help and provide value to.
And what would be the objective, mechanics, or satisfaction in playing the game? or is it just a game based on not so small microtransactions?
Not sure yet, flexing probably
It makes me think about this app: https://en.wikipedia.org/wiki/I_Am_Rich
Or, about the 1 million dollar webpage.
It can work, as soon as you're good at selling it. And, I believe, the second part of my previous sentence is the hardest.
Why it reminds you of 1 million dollar webpage? It's nothing similar to it
This is the first time I hear about that I Am Rich app