The high places and the low
Micah cites two examples: Samaria, the capital city of the northern kingdom built by Omri on a high and defensible hill, and Jerusalem, the capital of Judah. Being high and trusted in by their inhabitants has turned out in history to be bad for both.
Psalm 40:4 says, "Blessed is that man who makes the Lord his trust, and does not respect the proud, nor such as turn aside to lies." It is indeed a blessing to escape the bewitchment of the proud. People admire pride, seeing it as courage, and they are drawn to the audacity and insolence of the proud doer, so long as his pride is not directed against them. In fact, I've defiled myself with that kind of admiration from people, and that's an economy I'd best drop out of!