That may be true for some, but I know lots of guys who have no such drivers. These guys just love to turkey hunt. I know lots of guys in VA that tag out (can't buy bonus tags here), and then take out new turkey hunters and call for them. For many of these guys, it is more about the interaction with a spring gobbler than the kill. I've watched guys move from a 10 gauge shotgun, through a 20 gauge, and finally hunt with a bow to increase the challenge.
Now one likes selfishness or bloodlust and for any that have those drivers, I'd agree with you. However, I'd be hard pressed to project those drivers on someone unless they directly confessed them. Keep in mind that the same action by two different folks in different circumstances could have vastly different motivations.