I'd say that coming up with words like "incentivize" is a great way of encouraging people in the rest of the English speaking parts of the world to feel contemptuous of America. (As it would for any other country doing the same, I hasten to add.)

I've nothing against new words which add to the wealth and variety of the language. That one doesn't.

I wonder, if one of Bin Laden's cronies turns up with the head in a bag and dumps it on the table, will they actually pay up? Or will the fella at the desk feel tempted to shoot him, and hand in the two heads, and keep the money for himself?