There's some basis in reality to this.
It's called "scum nightkill the competent townies".
If you're right, you get nightkilled.
If you're nightkilled, you can no longer prevent the town from being absolute morons and doing things you would never let them do.
If you're wrong, you might avoid the nightkill.
If you avoid the nightkill, then you can influence the lynch.
But, of course, this is only the grain of truth to what you are saying, because it goes without saying that if you are wrong, then you being alive and wrong is +EV for the scum. (Since you either become a mislynch on BoP grounds thanks to having been wrong, or you push a fight which is tVt.)
Still. In certain games, this is absolutely the case. If you're wrong, but you can work well with someone who isn't wrong and the nightkill is placed elsewhere as a result, you're more likely to win; if you're right and the scumteam fears you ARE the person who works well with those who're wrong, you are nightkilled and thus prevented from doing so.
Would highly recommend never lying about your reads and never deliberately trying to be wrong and never trying to avert the nightkill and so on and so forth though. Because if you try that then you absolutely deserve the inevitable loss headed your way.
