We often hear talk of the value of self esteem. Teachers try to increase the self esteem of the children in their care. It is often stated as one of aims of a school. Managers in business find it is helpful to encourage workers and so to increase their self esteem for the sake of the company. If you are applying for a job you are expected to value your own worth highly.
Confidence is all the go.
If you don't have it there is something wrong with you, it seems. There are courses of training in assertiveness to overcome such handicaps. Yes, I know that is for good reason in a political sense. It sounds irrelevant and stupid. There is even the possible charge that we would be doing great harm to some people.