This is right, but the sort of people who have clawed their way to the top in politics, are generally different type of person than the rest of the population, so they are unlikely to listen to anyone else as they are only interested in the sound of their own voice.
This was the problem with Thatcher.
She wasn't going to listen to anyone and it proved her undoing but she was supported by the right wing of her party and they weren't interested in unity, they were only interested in lining their own pockets.
This is what Trump has done.
He has surrounded himself with right wing lunatics who he knows will back him, and there will be no listening to people with opposing views, no matter how much he says.
The man is a proven liar, why would anyone trust him?