But the way they got the confidence in what they are good at is the same right?
Also top researcher and high income earner naturally has high confidence?
Already told you confidence is not applied universally.
Having confidence in A does not equate to having confidence in B.
A successful and confident entrepreneur might not have confidence in ensuring a blissful lasting marriage, for example. He/she probably will not want to get married.
A corporate high flyer might not have confidence to pass an upcoming IPPT during in-camp training.
An established doctor might not have the confidence for a driving test which he has failed 3 times previously.
It is so hard to understand ? So which aspect of your life are you lacking confidence in ?