bts "deserve" the whole world

Why answer these 2 questions?
I have been reading about why athlete get exempted and it is not as simple as what they have done and achieve for the country. There is just more to that and I came with 2 questions:

1. What did they achieve and why enlisting now is a bad choice to the country?
2. What exactly have they achieve(that is prestige for Korean) to get exempted?

question 1:
This is a very simple question. What they have done to the country that they deserve to get exempted? and why…