权力为什么不安声?

毛不安声是因为要驾驭臣下

斯大林（感到）权力受到威胁/挑战

我们这些人是怎么回事？

Never been voted in power, so never have to worry about being voted out of power.

So Y?

One explanation is over-confidence in itself.

Then the question that follows it is: is it the natural inclination of confident power?