When people think you're the villain, they will resist whatever you want to do.

Even if it was good for them!

Imagine being a teenager and having an overbearing father.

When you flip the bit and start seeing him as a villain trying to thwart you, you go against what he tells you to do.

If you're trying to change someone who doesn't want to change, that can make you the villain in their eyes.

If you find yourself in the role of the villain, you'd better hope that you're powerful enough to convince them to do it anyway (with them possibly resenting it), because if not, you'll have a very hard time nudging them.

It's much easier to nudge people when they're open to being nudged by you.