What are some characteristics of rich people? Good and bad.

They have more money than non-rich people.

Other than that, they're people.

The subject of often-shared characteristics among rich people has been tackled many times.

http://lmgtfy.com/?q=characteristics+of+rich+people

And the fact such lists are nonsense has been thoroughly discussed by N.N. Taleb and others.

https://en.wikipedia.org/wiki/Survivorship_bias

https://en.wikipedia.org/wiki/Fooled_by_Randomness

They have money.
Other than that they share the same character traits as other people. And those vary from person to person.

Good:  

-Sometimes they can be altruistic and good and lend to charity;

-They are often ambitious and hard-working.

Bad:

-They are often snooty and arrogant;

-They are often impatient and demanding;

-They sometimes don't know how to spend their wealth; 

-They are sometimes irresponsible and wasteful;

-They sometimes have an unrealistic view of the real world.