None the above ever stopped a whole slew of people seeking short term gains.
If your aim is to profit off the famous mark you might save yourself some grief by asking the trademark holder "would you object"? Most people wouldn't ask because they're afraid the answer would be "No". Therein should lie the answer but, again, many choose to ignore it.
I'm of the opinion that the tidal wave of trademark enforcement has been building momentum. You don't want to be staring out at the ocean when it hits, do you?