I don't know much about the insides of Russian economy, but I'm absolutely sure that it's possible to become a successful entrepreneur in your country. Of course, probably one won't become an owner of Nornikel or GazProm, but what can stop him creating a successful startup in Russia, especially when you have favourable tax laws? The only thing that comes to my mind, is lack of VC infrastructure. Well, perhaps, I am too much in love with Russia and don't see some obvious things. Cheers.
I suppose I should qualify my ascription of "native Russian" unto myself by saying I am in the US nowadays and for some time.
It is quite possible to become a successful entrepreneur in Russia, to be sure, although neither tax laws nor bureaucratic requirements make it as fluid and simple as in America, and the most efficient path taken de facto is to avoid following them to some measure.
My point was more that when you see really exciting figures like hundreds of millions to billions of dollars from Russians, there is something else at work than the fledgling capital markets for the hoi polloi.