Besides, I don't think he is compatible with the society he lived in at
that time. His lack of understanding of the upper class is one of the
reasons why Daisy didn't choose him in the end. They were not in the
same world.
But I think Gatsby also has a very fatal weakness. For example, he is
too naive and his ideas are too idealistic. His so-called dream is naive
and unrealistic.
With people, he is kind.His smile makes people feel comfortable.
Although Gatsby gets rich through improper ways, his purpose of getting
rich is so romantic and simple, even holding a grand party is only for
the same simple purpose: to attract princess in his mind.
I think every girl wants to have someone like Gatsby who loves her. To
love, he is sincere and romantic.For the princess in his mind, he tries
to build a golden palace and a lively party, even though he is not
interested in all the fun and noise.