I think people should always love themselves, but we should also never forget the very fact that our minds lie to us, it has always lied to us and it wont stop. so most times, what want to might be wrong and we just don't see it. I advice we surround ourselves with people that share thesame values with us, so in times of confusion or decision making times, we will also get good councel.
Our minds always will always deceive us.
I feel that if we are able to identify the ego and step outside of it a bit, we tend not to trick ourselves so much, or we can easily identify when we are tricking ourselves.