Collision at Cajamarca

After completing the reading Collision at Cajamarca I was left wondering could Francisco Pizarro have changed the course of history if he had held true to the words he expressed to a messenger sent by Attahuallpa prior to the meeting of the two forces. The collision appeared to be a battle between "Quality versus Quantity." The agreement of trust introduced by Pizarro himself included the following, "Tell your lord to come when and how he pleases, and that, in what way soever he may come I will receive him as a friend and brother. I pray that he may come quickly, for I desire to see him. No harm or insult will befall him." I am going to assume, due to the fact that the majority of the Incan population was illiterate many agreements were oaths of trust, not signatures. Attahuallpa had never dealt with words of such mistrust before, therefore the very belief that the Incans held, Pizarro turned into a tactic. The reading noted that Attahuallpa should have been more suspicious but I do not know how one is supposed to suspect a tactic they were never previously confronted with. I believe that Pizarro outsmarted his opponent due to the fact that he held a broader understanding of human behavior taught to him by Europeans as he was illiterate himself. However, outsmarting them in the name of God, creator of the Heaven and Earth, to me makes the situation even more selfish and dirty. If Pizarro had decided not to kill Attahuallpa and give truth to his invitation, bringing God and knowledge into the land I believe could have changed the course of history as we know it. I did find it ironic to see how this event occurring in 1532, closely mimic the events occurring today in 2010. Which made me think of the old saying that "History has a way of repeating itself;" and if this is really true then if Pizarro acted differently could events occurring today and the words of others be received with less skepticism?