If military service exemptions are abolished, performance rankings will drop and athletes'

‌Do you expect that discipline will slacken, performance will become mediocre, and especially in ball games like soccer, baseball, and basketball, teams will refuse to release male athletes for national duty?
If that happens, wouldn't playing sports and becoming a national athlete essentially be seen as just proving they wore the national emblem to get a military exemption?
If the goal is truly to win gold medals for the prestige and honor of the nation, shouldn't they work harder? It is only right that their respective teams release them for duty.
Furthermore, if the argument is that they will slack off because there is no military exemption, then why are the most elite players sent to the World Cup, Asian Cup, and WBC, where there are no military exemptions?