I don’t think bitcoin is designed to turn people into millionaires, but most likely to gain freedom from the banks and be the bank of their own bitcoin. That is actually the purpose of Satoshi, that people will no longer rely to the government and banks, because bitcoin is a decentralized currency and that the owner itself is responsible to manage his own funds without entrusting to any third party like banks.
If only some users here will read some of the good threads here in the forum, they won't ask such question or think about this towards bitcoin. Satoshi didn't think about enriching himself when he created this currency. It is designed to be centralized so even ordinary people can benefit from it. A p2p currency that everyone can use and not rely to their fiat currency. Just take note of its importance as a cross-border payment. If you are dealing with fiat, you need a lot of documentation before you can send it to the other parts of the world, aside from the time that you need to wait. Whereas, if you deal with btc, you can even do your transaction at the comfort of your home within few minutes, and it will be received at the other side of the world.