Well technically they do get paid for the sack already its called their salary. The problem I have with it becomes trying to intentionally harm another professional, which based on the severity could stop them from making their livelihood.
I wasn't saying that I agreed with having a bounty either way, I was just saying there is a big difference.
Having a bet with your friends to see who can get laid the most, vs using roofies to win said bet.
Ask any NFL LB, Safety, DE if they are intentionally trying to harm other players they'll likely answer something like this: "Hell yes! That's my job. I'm not trying to injure, not trying to take anybody's knee out, or concuss them, and I'm not trying to use illegal hits like leading with the helmet, but fuck yeah I'm trying to harm a motherfucker." That is the essence of defense.
If the bounty is for a sack, a cart off hit, or to break the other guys leg, they're all illegal. There is a distinction between intent to inflict an INJURY, IE go for the knee with intent to inflict an injury such as tear an ACL, vs just trying to hit the opposing player with all the force you can and HURT him. HURT and INJURE are two different things, at least in football context. Players get hurt to one degree or another on every play. Some get hurt to the point they can't come off under their own power. We've all seen some of those come right back in the next play. Some go off on a John Deere, and are back on the sidelines with nothing more than ice on something, and playing the next week.
The problem with the bounties is they have the potential to motivate a player to target another to inflict INJURY, not just pain, IE going for a players knees with intent to INJURE. And there's no way to distinguish the intent.