官升脾气长 - Chinese Idiom

官升脾气长:

Literally means:

one's temper grows with the rising of his official position; one becomes more self-important with the rising of his official position.

Actually means:

It means with one's official position rising, he becomes more demanding or arrogant. It has a connotation of criticism. It is derogatory.

官升脾气长，随着官位的升高，脾气也大起来了。含有批评的意味。具有贬义色彩。