If you like to travel and you're a good interviewer, you might get some free flights and a week of additional vacation as you help with foreign interviews.
This is different, because if a company is buying in to you enough to send you to foreign countries, you probably don't have to worry about getting "perfed" by your manager.
However, most of the traditional closed-allocation companies view (despite their claims to the contrary) non-executive recruiting as undignified grunt work (you're associating with people, most of whom the company won't hire) and don't reward it. It just leaves you with one less hour per day to serve your boss's political needs.
