Remember the "no good deeds go unpunish".
If it is not safety, imminent danger situation, follow IOC's instructions. Saves you a lot of explanations, and career advancement opportunities down the road.
An extreme (unlikely) scenario: half way across the pacific, ordered by IOC to turn around to fix the IFE in first class (broke down mid-flight). Would you follow this instruction? I would - all knowing it would cost the company money and piss off the 300+ pax and their missed connections / meetings. Sorry, I am being selfish by looking after my own career first.
For commercial situations, let IOC make the call. You are here to make the call in emergency, safety-relation situations.