Frankly, I think that the motives of the conquistador lies in their name. These men wanted to conquer "the other," that which was in front of them. They did not come in peaceful harmony. Their motives were to conquer and capture that which existed in their path to extolling their own glory, and that of nation in a secondary capacity. The Conquistador use of force through the military reveals that their motives were to control New lands and native populations.
HOngwu he restored china to strong centralized rule. He revived the civil service system and Confucian values, he was first a ruler that was guided by the interest's of his people.