question:  Why did Houlihan consider his work to the advantage of humankind?
context: Every writer must seek his own Flowery Kingdom in imagination's wide demesne, and if that search can begin and end on Earth his problem has been greatly simplified. A one-time Air Force officer, he has turned to fantasy in his lighter moments, to bring us such brightly sparkling little gems as this. houlihan's equation by ... But its small, mischievous pilots had a rendezvous with destiny—on Earth. It was in a park near the nuclear propulsion center—a cool, green spot, with the leaves all telling each other to hush, be quiet, and the soft breeze stirring them up again. You may call it gas, if you wish, for we treated it like gas at the center for convenience—as it came from the rocket tubes in our engine. Without this coefficient to give us control, we would have lacked a workable equation when we set about putting the first moon rocket around those extraordinary engines of ours, which were still in the undeveloped blueprint stage. I had to figure everything into it—diameter of the nozzle, sharpness of the edge, the velocity of approach to the point of discharge, atomic weight and structure— Oh, there is so much of this that if you're not a nuclear engineer yourself it's certain to weary you. Perhaps you had better take my word for it that without this equation—correctly stated, mind you—mankind would be well advised not to make a first trip to the moon. And all this talk of coefficients and equations sits strangely, you might say, upon the tongue of a man named Kevin Francis Houlihan. If I had not been a specialist in my field I would hardly have found myself engaged in vital research at the center. I had seen them first as a boy of eight, and then, very briefly again, on my tenth birthday. Or so the legends affirmed, though I've wondered often about the truth of them. Simply because I was so lonely that my mind had become clogged.
output:  He thinks that sabatoging the little people will be better for the goals of humans
options:  He has furthered the goals of the little people, and not just the humans, making Earth a better place  He thought taking advantage of the little people's project to further his own goals was in line with human ideals  He thinks that sabatoging the little people will be better for the goals of humans  He thought human goals of scientific advancement could not be completed without his work