Also, Columbus largely made his own legend. Everyone told him he was wrong (and he was) but he just so happened to discover land people might actually want. And so he was very much vindicated by the discovery in his own eyes. And it was daring. Everyone rightly told him he was mad and incorrectly told him he would die. It was one of the craziest expeditions of all time. And because of it the Spanish Empire became one of the richest the world has ever seen, the legacy of which is still felt today.
This is not to Lionise Columbus but you have to acknowledge the context of the time. Greenland and Newfoundland were not well known and are a long way from the latitude Columbus was aiming at. He was an idiot, and cruel by our standards, but he was great.