I find it perfectly reasonable. Apple broke the law, and is now required to pay for a monitor to make sure they comply. For a business as big as Apple, you don't select a garden-variety lawyer, you pick the best you can--and the best are expensive. The top bankruptcy lawyer in the country has offices down the street from mine--his hourly rate starts at $1200. One of the top immigration lawyers in the country also has offices nearby, three of their partners have hourly billing rates in excess of $1000/hour.
This is, in practice, no different from Google, et. al., paying through the nose to acquire top tech/programming talent.