betting on the future of hostile internet - and users actually giving a shit about security.
The first is certain, the second is doubtful.
The basic ethical principle is to not interfere with another's well-being.
That's your suggested ethical code. It's not everyone's. Is it ethical to pirate music? To violate copyright?
Now systemd isn't fool proof and probably not bugfree either,
That's understating it. A simple tweet can crash systemd.
A year spent in artificial intelligence is enough to make one believe in God.