That's a double edged sword.
Another way of looking at this is bitcoin can make a lot of people poorer, specially when they look at bitcoin as a tool "to get wealthy". What we call "weak hands" consists of such people in general. For example they buy bitcoin at $40k and then panic sell at $35k just because there was a correction then buy back at $50k just to panic sell at $45k.
Bitcoin is Bitcoin and there is a market to trade Bitcoin. In the market, money flows around and bitcoins change hands among different people. I win, other lose and Bitcoin itself can not bring wealth to everyone in the market.
It can help intelligent investors who are disciplined, well strategied and already learned about the market, before investing, to get profit. It can not help lazy investors who are not actual investors but more similar to speculators or gamblers, they will lose money in this market to intelligent investors.