I know it's obvious, but what bitcoin fixes is not really my thing. That said, I don't think they'll be obsolete. I think there will be fewer of them seeking upside uncaringly. It's hard to explain why you're funding scams for a 20% return when you could have bought bitcoin. When there's no upside to compromising your morals, you won't.

imo changing base incentives is going to change all kinds of shit. Bitcoin is not a butterfly flapping its wings causing a tsunami. Bitcoin is a tsunami causing every butterfly to flap its wings and whatever else. VCs (and the financial class) are pretty close to this tsunami so the industry will probably change a lot.