apart for being mean by setting up edmond dantes for treason in the letter, what other traits does danglars possess?

Dantes is good with numbers as he is an accountant. Dangler's doesn't have a lot of good traits.

"The purser was a man of twenty-five or twenty-six with a rather melancholy face, obsequious to his superiors and arrogant to his subordinates. He was as much disliked by the crew as Edmond Dantes was liked by them."

so what good trait does he have?