The word "rape" in this context is taken to mean abduction. This is then followed by the integration of the abductees into the abductor's society.

From the article: "At the festival, Romulus gave a signal, at which the Romans grabbed the Sabine women and fought off the Sabine men. The indignant abductees were soon implored by Romulus to accept Roman husbands".

That the second phase may have employed carrots as well as sticks does not detract from the fact that the Romans have thereby managed to expand their reproductive capacities while simultaneously contracting that of the rival Sabines.