The friction in Lutz's family caused by his choice of profession comes to a head, and he runs away from home to get away from it all.
What benefits who doesn't matter one bit.
.ما ينفع وما لا ينفع غير مهمّ البتّة
Nicht um irgendwelche Vorteile!
Non è una questione di guadagno o simili.
Pouco importa quem ganha ou quem perde.
Тут дело не в пользе.