Certainly not just the USA. Also, unless you are travelling large distances or travelling at criminal speeds, you aren't really saving that much time by speeding.
Within cities, driving even 20% faster routinely results in literally no improvement in transit time because you still catch the same red lights at the same times, but burn more fuel between them.
[1] Or at least most people did. We still saw at least one vehicle jackrabbit out of a stop, get up to 35, and then hit the next red light. Over and over. Sigh...
But I agree. Watching someone weave past me to sit at the same red light or passing them when they pick the wrong lane in traffic always makes me laugh.