Bitcoin can cater to the rich and the poor, but the potential for higher profits for the rich because the investment in bitcoin is a big investment, if the rich success they will be richer and richer
You are 100% right here - each person can make his profit when he invests in Bitcoin. The difference is in the sum of money he invests. If he is ready to spend thousands, he will get the higher returns.
But the rich people have a big opportunity to make a big profit from bitcoin because they can be able to buy a lot of bitcoin in the one-time. It is why that the rich people will always getting rich than the other people because they can spend bigger money than the other people and as you said, their return will also be bigger. But we are in the cryptocurrency which we have many options to buy the coins and every coin in the market will have potential to gives a big profit in bitcoin, so we have the same opportunity like the rich people.