Except, in Apollo people died/can die.That is a rather silly criterion. All engineers build things that can kill people if they go wrong. That's what engineers do.
You think that social software can't be used to kill people? Do you know the number of people (mostly women) who are murdered each year by stalkers, most of whom are former lovers or spouses? Do you want to bet that none of those stalkers have used, say, Google to help locate their victims?
Do you think that having your identity stolen and your bank account drained can't lead directly to your death? What, do you live in a country where health insurance is guaranteed to all citizens? (Oh, wait -- perhaps you do. Never mind.)
"Toy companies"? Interesting choice of phrase. Here's what one minute's Googling found for me: A court case, Estate of Matthew C. Metzgar v. Playskool, Inc:
http://caselaw.lp.findlaw.com/cgi-bin/getcase.pl?court=3rd&#...
the plaintiffs' expert, E. Patrick McGuire, reported for the record that in one year studied, 1988, there were eleven deaths due to aspiration of small toys or toy parts by children... the plaintiffs submitted a CPSC estimate reported in the House Congressional Record that in each year from 1980-88, an average of 3,200 small children were treated in hospital emergency rooms for toy related ingestion and aspiration injuries. The CPSC also reported that between 1980 and 1991, 186 children choked on small toys, toy parts, and other children's products.
Frankly, from the viewpoint of danger and death, the space program's engineers are wimps: They do very dangerous things, but they only endanger a handful of people at a time. A toy engineer who specifies the wrong paint can kill hundreds of babies at once. Social software is pretty safe, but if the odds that a Facebook user will be killed because of a Facebook design error are as small as one per 100 million user-years [1], the company stands to lose 1 user per year, because they have 90 million active users.
[1] I have no data, but I doubt the odds are that small. I'd be astonished if Facebook hadn't already been a factor in thousands of suicides, for example. One of the reasons why humans are so incredibly talented at socializing is that it's fraught with peril.