Online browser based game where rich kids develop their virtual rich characters

This is just a draft, still needs brainstorming. I was thinking about creating a game only for rich kids. Game would be web based, something like Ogame, 2D game.

In this game rich kids would be able to grow their virtual rich characters. They start off from nothing, being poor and they need to climb their way up by buying virtual expensive things. More money they spend more popular and influential they become.

Person can join the game by proving they are rich, such as deposing like $499 dollars or whatever to create account and then others can join by inviting their rich friends, otherwise there is no way to join. There would be no annoying ads in the game.

It needs to be immersive, addictive and flexing enough for kids to stay and invite their friends. I need some concept ideas. Basics what I have now is "Online browser based game where rich kids develop their virtual rich characters".

If you think this is interesting for you, let me know. I'm web dev with startup and business mindset.