The basketball comparison is apples to oranges because you are talking about 2 totally different sports with 2 different histories and traditions.
Actually, I think it's very analogous. But even if you want to stick to football, what about an intentional delay of game foul to run time off the clock, or to give your punter more room? Same sport, same concept: I'm intentionally fouling, because I'm willing to pay the price.
We teach our QB's: If you are being sacked and they pull you down by your face mask, drop the ball. Why? Because if he is tackled with the ball, it's a running play, the enforcement spot will be at the spot of the foul. But if he drops the ball, it's a loose ball play, and the enforcement spot is the previous spot. Unethical? Of course not, it's knowing the rules.
Idealist or not, there is nothing unethical about using the rules of the game to the best advantage of your team. To do anything less is not supporting my team as I should.