As others have said, many hounds are bred to give humans direction, not take it from humans. The dog-hunter relationship in the case of hounds -- where the hound follows the scent, and the hunter follows the hound -- is very different from that of dogs like Labs or Goldens, who take direction from the hunter. A Beagle, for instance, is hardwired to follow his nose even if the hunter thinks the hare has gone a different way...he knows better. Likewise, a Husky who is being made to pull a sled across ice that he knows is dangerously thin is bred to follow his instincts and disregard human instruction. And, generally speaking, Labs and Goldens are a fair bit more trainable than Beagles or Huskies.
See what I mean?