[mhb]

If you're suggesting that all these jobs are good, for their own sake, then:

https://en.wikipedia.org/wiki/Parable_of_the_broken_window

[aj7]

Only if there’s no learning. The Apollo 1 fire, countless air disasters etc. led to much greater safety.

[mhb]

Of course. But you can say "Only if there's no x" about many x's. The point is that jobs are only good as a means, not an end.