Yes - when you take into account the teams designing, building, testing the spacecrafts themselves, government dapartments involved, media, R&D teams, astronauts plus training, mission control, building the facilities from which the space crafts themselves were launched, scientists involved from start to finish, the fact that many people involved would have worked far longer than 8 hour days etc.... I would think its quite possible that more man hours were spent on it.
And each of the above would have commanded a higher salary than someone teaching Irish so its also quite possible that it cost a lot more - you dont get whole teams of world class scientists and engineers working cheap.