Surely it is if the team have TOLD both drivers to turn their engines down, one driver sticks to that and does as he's told, and the other does not?
Just saying
No, not at all. There is not one single rule, saying team orders have to be followed, it is an internal matter. In no way, at all, can it be said he cheated. He simply didnt.
He's no1 driver and so RBR will not do anything. This is the perks of being a great driver.