Don
Pure fantasy
You are deluded if you truly believe that. Any team would be doing the same in the same position.
It's not just the championship itself, it's win bonuses for all the race/factory staff, extra income, HUGE PR benefit with having another WC in the team. If you do not believe they are considering a "professional foul" to win, you are simply not in reality.
They will not do anything that cannot be plausibly written off as a racing incident, and will use the precedent set in other races to stand (legally if needed!!) to ensure they claim a victory.