You are right but the reasons you gave are not right..
You see fighter pilots and commandos of any country on this planet earth are fed superiority complex like they are like no other on planet earth even when they are not.
Reason?
Occupational risks.
So,to motivate someone to carry out tasks in which you have a chance of not coming back you have to tell them things like you are the best,we cant survive without you bla bla
Some characters take it too personally and dont bother to upgrade which leads to troubles in personal relationships too.