When companies start having penalties for getting hacked and leaking people's information, they might do something.
It's also too easy for the attackers to hide in Internet.
What good is it for companies to just build increasingly stronger and more complex security fortresses and still be at the complete mercy of sudden anonymous attacks from unknown directions. That's just crappy design of Internet.
NASA's New Horizons spacecraft awoke from hibernation on Saturday
Apparently isn't a Linux-based system then...
A security solution does not have to be 100% perfect to still provide value.
Let's take another example. A workstation requires pressing Ctrl-Alt-Del and typing a password to unlock the computer. You might say that it is useless protection because an attacker can just walk away with the hard drive of the computer.
So why is the password still useful? Well, without a password, an attacker might just start locally using the computer and quickly take a look at various secret documents. If he were to grab the hard drive, it would take significantly more time, which would increase the chances of being captured by the security team.
To get back to the topic, by using encryption you are not the lowest hanging fruit out there.
"Money is the root of all money." -- the moving finger