He eventually realizes he's going down the dark path, but he thinks it's justifiable.
Incremental bandwidth is a tiny part of the cost of supporting broadband so only a tiny usage charge is justifiable.
There is no, absolutely no justifiable excuse for their behavior.
Deciding that graffiti is art doesn't make it morally justifiable.
If the original contains a typo of no consequence, it is polite-and justifiable-to correct it quietly.
It happens by little steps, with each step on each side being justifiable in the minds of both parties.
Seems to me that it would be equally justifiable on the basis of the argument given.
Whether or not it is justifiable to terminate that process during the nine-month gestation period is another story.
If it is justifiable to make seatbelts and bike helmets mandatory, then it is justifiable to make vaccination mandatory.
The exclamation mark after friend is justifiable, not the other.