The difference, of course, is that basketball is a fast-paced, high-scoring game, and the entertainment value suffers mightily when it is slowed down. Soccer is about deliberately building to a scoring opportunity, so forcibly speeding up the game would simply ruin the structure. Obviously, "turtling" can be a bit of a problem as a result, but it's not hard for a team to sacrifice some defensive structure to press for a turnover.
Explicit clock management is part of the game.
But if you start messing around when the other team has ended pursuit, you are definitely breaking an "unwritten rule" (of which there are many in sports).
Behaviors like this will typically result in some variation of an on-field fight, which honestly seems like a pretty fair means of enforcement.
Conservative play calling with a lead, particularly on defense, is known to reduce your chances of holding the lead. Sticking to more balanced tactics leads to losses that look more spectacular, but fewer of them.
And depending on how you look at the stats, the "icing the kicker" timeout either doesn't really work, or only works if done before the offense is set, which is not when most coaches call it.
Football is a really interesting sport above/behind the field.
Clock management is a pretty big aspect of (American) football strategy and very much expected. I don't think anyone considers it gaming the rules. Just off the top of my head:
- Teams with comfortable leads tend to switch to conservative play calling. This keeps the ball safe and the clock running.
- Inside of 2:00, getting tackled on the field keeps the clock running. But running out of bounds or throwing an incomplete pass will stop the clock. So plays are always chosen to take advantage of this.
- Quarterbacks will spike the ball to quickly the stop the clock (incomplete pass).
- Calling a timeout stops the clock, so teams save these for the 2:00 drill. The 2:00 warning also stops the clocks, teams consider this a free timeout.
- Coaches will call timeout just as a kicker is about to kick a field goal. This is called "freezing the kicker". When timed right, it makes the kicker have to kick it again.