Bitcoin is not for the rich alone but i feel that they will get the highest benefits from bitcoin investment because since they are rich, they will invest huge amounts of money in bitcoin such that they can hodl for a long term without tampering their bitcoin but for someone who is not financially capable, even though he has plans of holding for long but there is a certain level the price can get to and he won't be able to hodl anymore because he will see himself that he have made a lot of profits. Rich people are not afraid of market volatility because they know that whatever that happens won't affect their wealth but someone who is not financially settled will always be afraid of market fluctuations and volatility so that's just the difference.