Financial security and social familiarization aren't the only sources of confidence. Understanding of skills' value, faith in the ability to learn new skills, curiousity about what others find valuable and willingness to provide it -- no one who has these has much deep anxiety about pleasing the boss. If the boss likes them, great! If not, they're happy to move somewhere that appreciates what they add. Confidence is out there for anyone willing to learn and work.
Financial security and social familiarization aren't the only sources of confidence. Understanding of skills' value, faith in the ability to learn new skills, curiousity about what others find valuable and willingness to provide it -- no one who has these has much deep anxiety about pleasing the boss. If the boss likes them, great! If not, they're happy to move somewhere that appreciates what they add. Confidence is out there for anyone willing to learn and work.