Hand Solo is clearly a prat. Extremely vulnerable to competition, due to lack of confidence. This will be because people like this are unable to adapt to different roles or circumstances.
Operating like robots, not only in work, but in personal life.
I have many friends whom used to be FA's and now fly commercially in the UK. Most of whom are now in senior roles, or training positions.
Work hard, achieve your goals, and ignore people who will put you down at any given opportunity.