To save the other world with my polygamy skill I must make a Harem Polygamy Harem

I was hacking around with a game when I suddenly got summoned to another world. Due to the data, I was manipulating I got the ability to marry however amount of girls I want based on my Polygamy level. Will this help me in saving this world so that I can return to my original world?
At least I would enjoy the time here making my harem and using the *benefits* of it.