More like a $250,000 salary + benefits. Medical coverage is hideously expensive for example. Plus retirement, dental, insurance, and taxes. Still a cushy salary for a dev, but not completely out of the realm of reason.
I do thin the parent's point still stands though, my current salary is not nearly that high but you'd have to pay me a lot more than $500k for me to risk hacking an American pipeline. That's an insane amount of risk for a few years worth of salary (that I'll probably have to be very careful laundering if I don't want to raise suspicions).