Computer systems aren't 'other', they're expressions of humans. That includes the mistakes and cock ups humans make. I've always said that before computers, people could only royally screw up say 10-20 times a day, hour, whatever. Now, with modern computing, we can make millions of mistakes per second. The scary bit is the rate of change and development; legislation is not struggling to keep up with this rate of change, it is completely and utterly failing to do so.
Porn ruined everything? I disagree. Us, the consumer, all of us, ruined everything. For some reason, nearly everybody had the attitude that everything on the internet should be free. We refused to pay for any content or service, so how then was the enormous cost of running the WWW to be funded? Welcome to the rise of ... not the machine, but bloody Google who transformed the entire internet into their marketing b1tch. Welcome to the new world of malvertising. I suggest not to click on any adverts ;-)
On the subject of aeroplanes, such systems are programmed in ADA typically which, incredibly, I do trust.
Disclaimer: the above was written on Monday morning whilst my caffeine/blood ratio was dangerously low.