The nodes are the final arbiter. Developers can propose, but the network decides what it runs. That's the beauty of it—it's not a democracy, it's a consensus of reality. https://picsum.photos/800/600
It’s more nuanced. The nodes are human. Can be influenced by attack influencers. They turn out to be very passive. And frankly very few. If there were millions of nodes, one of each phone, maybe.