His statement here:
"“Believe me, the people who are creating cryptocurrencies are not thinking about the customer, they are thinking about themselves [...] I want to make my money by selling people things that are good for them, not things that are bad for them.”
purports a genuine concern for the customer's interest that is supposedly absent in most of crypto. I don't think this can be disagreed to. Most crypto is indeed about making money at the expense of your buyers. This doesn't mean that people aren't genuinely trying to make useful products.
Not agreeing with much of Berkshire but what he's saying actually applies outside of crypto -- making money is about making money for most of people in finance (traditional or otherwise). Everyone sells it as something that's good for them, but not really interested about the truth of it.
I think what he means is the traditional entrepreneurial rallying cry about putting the "consumer first". This is where most cryptocurrencies, not Bitcoin, like @pooya87 pointed out, fail. There are 11000+ listed coins and most are about making money through scams.
Everything almost, sold in crypto today, is supposed to be good for you. NFTs are good for artists. Defi is good for the unbanked. IDOs and ICOs are good for democratisation, etc.
DeFi isn't good for the unbanked. It is good if you want your crypto or your cash to perform better than inflation, albeit with a lot of risk. It is also for those who can afford to make transactions worth 10s of thousands because the fee itself would cost you almost 100 USD in gas. DeFi is mostly just an experiment when it comes to mass adoption. It is a happy coincidence that a lot of people benefit from these experiments because of retrospective airdrops like the one Uniswap and DYDX did.
IDOs and ICOs being good for democratization is a bit of a far cry. These money raises generally have private sales which they are ultimately meant to benefit. Its all running on a hype cycle with almost no real products coming out. I do think though that the DAO models are indeed a good example of the democratization of benefits from a new market, which until now have been sole purvey of VCs and "accredited investors". That is good, definitely good.
