Interesting. I had this discussion with someone who knows some core devs and he said something like : "you can't buy many of this people. a lot of them don't exist in fiat world at all and have strong principles. " another thing is the consensus needed to implement changes. Node runners are not that stupid to allow to destroy this protocol.
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Someone will make nodes easy. Someone will try to co-opt them. Someone will make an argument for an innocent little change.
Not saying it’s easy, but attempts will be made.
If bitcoin truly takes over the world, there’s gonna be an ungodly amount of money trying to influence every aspect. It’ll be relentless.