I think people who have a lot of fund will have opportunity to gain bigger profit. But it's not a guarantee. In my opinion, people who can gain profit from this investment are those who buy and sell in correct time. I only have small amount of money but it always doubled every bullish market trend. So I sold at that time then buy btc again when bearish market trend happen. Another example is, I bought TRX at lowest level at bearish market few weeks ago and now if I sell it then I can get 200% of profit, but I will not sell it now because I think bullish market trend is even not starting yet. So in my point of view, investing in bitcoin and other cryptocurrencies need knowledge and experience, not just big fund.