In Chapter 9 of "The Great Gatsby," what does Nick say about people like Daisy and Tom?
In Chapter 9 of The Great Gatsby, Nick runs into Tom Buchanan on the street and at first refuses to shake hands with him. Nick has realized by this point that Tom was probably responsible for Gatsby's death, and Tom confirms this, justifying his action by blaming Gatsby for killing Myrtle and thus also telling us that Daisy has continued to lie to him about who was actually driving the car at the time of the fatal accident. In the face of this final proof of Tom's brutality and Daisy's shallowness and cowardice, Nick reflects to himself,
I couldn’t forgive him or like him, but I saw that what he had done was, to him, entirely justified. It was all very careless and confused. They were careless people, Tom and Daisy—they smashed up things and creatures and then retreated back into their money or their vast carelessness, or whatever it was that kept them together, and let other people clean up the mess they had made. . . .
Nick has learned that there is no hope of morality from people like Tom and Daisy -- they simply refuse to take ownership of their own deeds, in an endless, immature evasion of responsibility cushioned and enabled by their great wealth:
I shook hands with him; it seemed silly not to, for I felt suddenly as though I were talking to a child. Then he went into the jewelry store to buy a pearl necklace—or perhaps only a pair of cuff buttons—rid of my provincial squeamishness forever. (My emphasis)