No, every node is not equally economically significant. You’re conflating consensus validation (where all full nodes are equal, technically speaking) with economic influence over miner incentives.

Consensus just means “do these blocks follow the rules?” Yes… every full node validates equally here. But PROPAGATION (the relaying of transactions and blocks across the network) is where economic weight matters.

Nodes that relay lots of economically valuable transactions (like those of exchanges, payment processors, custodians) effectively control visibility into fee-paying transactions.

Meanwhile nodes without economically meaningful transaction flow (like hobby nodes / passive validators) don’t influence miner revenue or block propagation incentives significantly. I’m guessing this is what your argument focuses on.

Miners rely on rapid, reliable block propagation to minimize orphan risk. If a miner includes transactions that economically influential nodes refuse to relay, the miner’s block propagates more slowly or incompletely, raising the miner’s risk and lowering profitability.