Monetary compensation for something like that is hard, though. There's no societal standard on the value of a person's day, and it opens the possibility of abus

Monetary compensation for something like that is hard, though. There's no societal standard on the value of a person's day, and it opens the possibility of abuse on the other end (professional interview-taker). In practice, there is an intangible compensation, in the form of a reasonable expectation of being hired.