I hate the word ‘Consumer’ or I mockingly call it ‘CONSOOMER’. Because that’s to imply everyone in the world is just cattle, but with wallets. We’re no longer customers. We’re consumers now. And a consumer’s purpose is to consume shit, whatever is put out there. Got money? Shut up and consume, it’s what corporate interests and capitalism itself thrive on. Consume and consume.
That is the point of calling someone an NPC.
I think the implication is that the person is thoughtlessly following an ideology, in the same way most people using the term are.