I spend a good chunk of my time at work evaluating pitchdecks, and even in the crypto space it's notable that most people try to build concepts that insert themselves as a rentseeking central hub even when their idea doesn't in any way require it. Clearly a lot of people see that as the best way of securing their ability to monetise.
But at least for some of those ideas it's clear that they'd have a far greater shot at success if they opened up and created something that allowed more benefits to flow to potential partners, and even to potential competitors, because it'd increase their chance of being the new standard in $field. They might end up with a smaller market share, but of a much larger market.
I'm not saying that will work for everyone, because it won't. But it seems people way too rarely consider if that's even a possibility, because they're from the start putting effort into preventing a decentralised model from working. Then, after they've ruled out a decentralised solution, a whole lot of them add "blockchain" to their pitchdeck after having made blockchain totally pointless by introducing a centralised authority... Sometimes I just want to lock some of these founders in a room and ask them "why?" over and over.