I think blockchain already have an impact to every people's life. As it gives people more opportunity to change their life by being rich or poor. Since there's still no guarantee you'll succeed in this industry. If this technology spreads to every people for sure it could also change the society's perspective and a lot might enter the market.
Too much hope for you to be rich is not enough, you have to exert effort for you to gain what you want to achieve like studying, experience and emotion.
Blockchain technology isn't doing that. It isn't invented to make people rich. You are talking about speculative trading/investing, when you buy SOMETHING and hope it will go up in value, even though most of them are backed up by nothing else then promises, hopium and greed. This could have happened with trading cards. Downside of speculative trading/investing is that it might as well get you rekt. That's pretty much same as gambling.
Blockchain tech can change society but it isn't doing that by making people rich.
Yes, I agreed with. Sincerely speaking I don't see blockchain tech change some societies by making people rich but blockchain technology has an earlier impacts of reaching the societies lurks and crannies where every child with knowledge of device and cryptosystem will learn the freedom of trading/investment but we can see division by countries from embracing blockchain which has cause detriments and wrong opinion by societies towards blockchain. At this point I don't know, it will take grace for blockchain to make a enough changes of making the lives of people rich according to OP, except the bulls runs way heavy. But as for impact bitcoin has already the societies but not necessary making them rich but the knowledge.