In The American, how is Newman characterized?

In Henry James’s story, Christopher Newman is an American man who has grown disenchanted with the things and experiences that his millions can buy. The yearning for novelty and the interest in finding a wife sends him to Paris, the epicenter of culture and romance.
James portrays Newman is a principled man who is not shallow and rather sensitive to others’s feelings and virtues. The downside of his trusting nature is that he is naïve and subject to manipulation. While James makes Newman seem like an individual, he also uses him to represent the Americans more generally and their limited understanding of Old World Ways. Newman’s growing love for Claire shows his good qualities, as she is obviously a worthy match for him. Nevertheless, his desire to marry her is thwarted by her unscrupulous relatives and associates. Ultimately, his upstanding character wins out as he realizes his need to decides to behave as her true friend, even at the cost of sacrificing some other scruples.