"There are two counterbalancing features of Nakamote Consensus. One is hashpower. The other is the market for the coins mined by that hashpower. The market defines which rules it will accept."
If these are not in sync -- if a majority of hashpower is mining according to rules that the market rejects -- that is clear evidence that the hashpower majority is dishonest. Because
he ought to find it more profitable to play by the rules, such rules that favor him with more new coins than everyone else combined than to undermine the system and the validity of his