Facebook is hugely valuable. Making it easy to share photos, organise get-togethers, or message your friends, is directly making people's lives better. (And complaining that messaging systems allow people to send negative messages is throwing the baby out with the bathwater; do you blame the telegraph or the telephone for "literally helping instigate ethnic cleansings", which in a literal sense they undoubtably did?) Even Juicero, which is very much the exception rather than the rule, was a real product that helped make people happier and healthier (just, not by $400 worth - which is why it rapidly collapsed in the market, as it should).